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Wu L, Kinuthia J, Anderson PL, Baeten JM, Dettinger JC, Gandhi M, Gomez L, John-Stewart G, Marwa MM, Ngumbau N, Otieno F, Omondi P, Odhiambo B, Watoyi S, Pintye J. Drug concentrations in hair and dried blood spots as PrEP adherence metrics during pregnancy and postpartum. J Infect Dis 2024:jiae208. [PMID: 38700101 DOI: 10.1093/infdis/jiae208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 05/05/2024] Open
Abstract
We evaluated hair tenofovir (TFV) concentrations as an adherence metric for HIV pre-exposure prophylaxis (PrEP) during pregnancy and postpartum and compared hair levels with tenofovir-diphosphate (TFV-DP) levels in dried blood spots (DBS). Overall, 152 hair samples from 102 women and 36 hair-DBS paired samples from 29 women were collected from a subset of women in a cluster randomized trial. Having a partner known to be living with HIV was associated with higher hair TFV levels (p<0.001). Hair TFV concentrations were strongly correlated with DBS TFV-DP levels (r=0.76, p<0.001), indicating hair as promising cumulative adherence metric for perinatal PrEP assessment.
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Affiliation(s)
- Linxuan Wu
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - John Kinuthia
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Peter L Anderson
- Department of Pharmaceutical Sciences Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Jared M Baeten
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, USA
| | - Julia C Dettinger
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Monica Gandhi
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Laurén Gomez
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Grace John-Stewart
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Pediatrics, School of Medicine, University of Washington, Seattle, USA
- Department of Medicine, University of Washington, Seattle, USA
| | - Mary M Marwa
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Nancy Ngumbau
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Felix Otieno
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Pascal Omondi
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Ben Odhiambo
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Salphine Watoyi
- Department of Research & Programs, Kenyatta National Hospital, Nairobi, Kenya
| | - Jillian Pintye
- Department of Global Health, University of Washington, Seattle, WA, USA
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, USA
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2
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Zhang HL, Mock M, Bushman L, Anderson PL, Kiser JJ, Naggie S. Cumulative tenofovir exposure among patients with human immunodeficiency virus/hepatitis B co-infection with differential viral suppression. Clin Infect Dis 2024:ciae241. [PMID: 38703389 DOI: 10.1093/cid/ciae241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/19/2024] [Accepted: 04/11/2024] [Indexed: 05/06/2024] Open
Abstract
This case-control study explored cumulative tenofovir exposure among patients with HIV/HBV co-infection with HIV viral suppression. Among patients taking tenofovir disoproxil fumarate, median TFV-DP levels in dried blood spots were ∼3-fold lower among patients with incomplete HBV viral suppression (n=4) compared to those with complete suppression (n=5) (516 vs.1456 fmol/punch).
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Affiliation(s)
| | - Meredith Mock
- Department of Physician Assistant Studies, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Lane Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Susanna Naggie
- Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, NC, USA
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van den Elshout MAM, Wijstma ES, Boyd A, Jongen VW, Coyer L, Anderson PL, Davidovich U, de Vries HJC, Prins M, Schim van der Loeff MF, Hoornenborg E. Sexual behaviour and incidence of sexually transmitted infections among men who have sex with men (MSM) using daily and event-driven pre-exposure prophylaxis (PrEP): Four-year follow-up of the Amsterdam PrEP (AMPrEP) demonstration project cohort. PLoS Med 2024; 21:e1004328. [PMID: 38718068 DOI: 10.1371/journal.pmed.1004328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/22/2024] [Accepted: 04/10/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND An increasing number of countries are currently implementing or scaling-up HIV pre-exposure prophylaxis (PrEP) care. With the introduction of PrEP, there was apprehension that condom use would decline and sexually transmitted infections (STIs) would increase. To inform sexual health counselling and STI screening programmes, we aimed to study sexual behaviour and STI incidence among men who have sex with men (MSM) and transgender women who use long-term daily or event-driven PrEP. METHODS AND FINDINGS The Amsterdam PrEP demonstration project (AMPrEP) was a prospective, closed cohort study, providing oral daily PrEP and event-driven PrEP to MSM and transgender women from 2015 to 2020. Participants could choose their PrEP regimen and could switch at each three-monthly visit. STI testing occurred at and, upon request, in-between 3-monthly study visits. We assessed changes in numbers of sex partners and condomless anal sex (CAS) acts with casual partners over time using negative binomial regression, adjusted for age. We assessed HIV incidence and changes in incidence rates (IRs) of any STI (i.e., chlamydia, gonorrhoea, or infectious syphilis) and individual STIs over time using Poisson regression, adjusted for age and testing frequency. A total of 367 participants (365 MSM) commenced PrEP and were followed for a median 3.9 years (interquartile range [IQR] = 3.4-4.0). Median age was 40 years (IQR = 32-48), 315 participants (85.8%) self-declared ethnicity as white and 280 (76.3%) had a university or university of applied sciences degree. Overall median number of sex partners (past 3 months) was 13 (IQR = 6-26) and decreased per additional year on PrEP (adjusted rate ratio [aRR] = 0.86/year, 95% confidence interval [CI] = 0.83-0.88). Overall median number of CAS acts with casual partners (past 3 months) was 10 (IQR = 3-20.5) and also decreased (aRR = 0.92/year, 95% CI = 0.88-0.97). We diagnosed any STI in 1,092 consultations during 1,258 person years, resulting in an IR of 87/100 person years (95% CI = 82-92). IRs of any STI did not increase over time for daily PrEP or event-driven PrEP users. Two daily PrEP users, and no event-driven PrEP users, were diagnosed with HIV during their first year on PrEP. Study limitations include censoring follow-up due to COVID-19 measures and an underrepresentation of younger, non-white, practically educated, and transgender individuals. CONCLUSIONS In this prospective cohort with a comparatively long follow-up period of 4 years, we observed very low HIV incidence and decreases in the numbers of casual sex partners and CAS acts over time. Although the STI incidence was high, it did not increase over time. TRIAL REGISTRATION The study was registered at the Netherlands Trial Register (NL5413) https://www.onderzoekmetmensen.nl/en/trial/22706.
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Affiliation(s)
- Mark A M van den Elshout
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
| | - Eline S Wijstma
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
| | - Anders Boyd
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Stichting hiv monitoring, Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Amsterdam Institute for Immunology and Infectious Diseases (AII), Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands
| | - Vita W Jongen
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Stichting hiv monitoring, Amsterdam, the Netherlands
| | - Liza Coyer
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Udi Davidovich
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Department of Social Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - Henry J C de Vries
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Amsterdam Institute for Immunology and Infectious Diseases (AII), Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Department of Dermatology, Amsterdam, the Netherlands
| | - Maria Prins
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Amsterdam Institute for Immunology and Infectious Diseases (AII), Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands
| | - Maarten F Schim van der Loeff
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Amsterdam Institute for Immunology and Infectious Diseases (AII), Amsterdam, the Netherlands
- Amsterdam UMC location University of Amsterdam, Department of Infectious Diseases, Amsterdam, the Netherlands
| | - Elske Hoornenborg
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
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Beauchamp G, Hosek S, Donnell D, Chan KCG, Anderson PL, Dye BJ, Mgodi N, Bekker LG, Delany-Moretlwe S, Celum C. The Effect of Disclosure of PrEP Use on Adherence Among African Young Women in an Open-Label PrEP Study: Findings from HPTN 082. AIDS Behav 2024; 28:1512-1521. [PMID: 37768427 PMCID: PMC11069481 DOI: 10.1007/s10461-023-04175-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2023] [Indexed: 09/29/2023]
Abstract
To develop effective PrEP adherence interventions, it is important to understand the interplay between disclosure of pre-exposure prophalxis (PrEP) use, social support, and PrEP adherence. We leveraged the HPTN 082 study conducted among 451 adolescent girls and young women (AGYW) (ages 16 to 25 years, 2016 to 2019) in South Africa and Zimbabwe. Among the 349 who had month three disclosure and PrEP adherence data, 60% (n = 206) felt supported by adults, and 89% (n = 309) disclosed PrEP use to at least one person. PrEP disclosure was not associated with increased adherence, measured by intracellular tenofovir-diphosphate concentrations in dried blood spots. Women who reported having supportive adults, and disclosed to their parents, had higher adherence at 6 months with an increase of 177 fmol/punch (95% CI 12 to 343, t = 2.11, p = 0.04). PrEP interventions that help AGYW identify supportive relationships and effectively communicate the benefits of PrEP may improve PrEP adherence.Clinicaltrials.gov ID number: NCT02732730.
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Affiliation(s)
- Geetha Beauchamp
- Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA.
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Mail Stop M2-C200, Seattle, WA, 98109, USA.
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, IL, USA
| | - Deborah Donnell
- Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Mail Stop M2-C200, Seattle, WA, 98109, USA
| | - Kwun C G Chan
- Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | | | - Nyaradzo Mgodi
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Sinead Delany-Moretlwe
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Connie Celum
- Departments of Global Health, Medicine, and Epidemiology, University of Washington, Seattle, WA, USA
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5
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Riddler SA, Kelly CW, Hoesley CJ, Ho KS, Piper JM, Edick S, Heard F, Doncel GF, Johnson S, Anderson PL, Brand RM, Kunjara Na Ayudhya RP, Bauermeister JA, Hillier SL, Hendrix CW. A Phase 1 Clinical Trial to Assess the Safety and Pharmacokinetics of a Tenofovir Alafenamide/Elvitegravir Insert Administered Rectally for HIV Prevention. J Infect Dis 2024:jiae211. [PMID: 38655842 DOI: 10.1093/infdis/jiae211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/05/2024] [Accepted: 04/19/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND On-demand topical products could be an important tool for HIV prevention. We evaluated the safety, pharmacokinetics, and ex vivo pharmacodynamics of a tenofovir alafenamide/elvitegravir (TAF/EVG; 16 mg/20 mg) insert administered rectally. METHODS MTN-039 was a Phase 1, open-label, single-arm, 2-dose study. Blood, rectal fluid (RF), and rectal tissue (RT) were collected over 72 hours (hr) following rectal administration of one and two TAF/EVG inserts for each participant. ClinicalTrials.gov Identifier: NCT04047420. RESULTS TAF/EVG inserts were safe and well tolerated. EVG and tenofovir (TFV) were detected in blood plasma at low concentrations: median peak concentrations after 2 inserts were EVG 2.4 ng/mL and TFV 4.4 ng/mL. RT EVG peaked at 2-hr (median 2 inserts= 9 ng/mg) but declined to BLQ in the majority of samples at 24-hr, whereas TFV-DP remained high >2,000 fmol/million cells for 72-hr with 2 inserts. Compared to baseline, median cumulative log10 HIV p24 antigen of ex vivo rectal tissue HIV infection was reduced at each timepoint for both 1 and 2 inserts (p<0.065 and p<0.039, respectively). DISCUSSION Rectal administration of TAF/EVG inserts achieved high rectal tissue concentrations of EVG and TFV-DP with low systemic drug exposure and demonstrable ex vivo inhibition of HIV infection for 72 hours.
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Affiliation(s)
- Sharon A Riddler
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213 USA
| | - Clifton W Kelly
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Center, Seattle, WA
| | - Craig J Hoesley
- Departments of Medicine and Medical Education, University of Alabama at Birmingham, Birmingham, AL 35294 USA
| | - Ken S Ho
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213 USA
| | - Jeanna M Piper
- Division of AIDS, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892 USA
| | - Stacey Edick
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213 USA
| | - Faye Heard
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294 USA
| | | | | | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045 USA
| | - Rhonda M Brand
- Department of Medicine, University of Pittsburgh, and Magee-Womens Research Institute, Pittsburgh, PA 15213 USA
| | | | - José A Bauermeister
- Department of Family and Community Health, University of Pennsylvania School of Nursing, Philadelphia, PA 19104 USA
| | - Sharon L Hillier
- Department of Obstetrics and Gynecology, University of Pittsburgh, and Magee-Womens Research Institute, Pittsburgh, PA 15213 USA
| | - Craig W Hendrix
- Department of Medicine (Clinical Pharmacology), Johns Hopkins University, Baltimore, MD 21287 USA
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Coyle RP, Morrow M, Mann SC, Mainella V, Ellis SL, Schwab S, Coppinger C, Barker N, Ellison L, Zheng JH, Al Zuabi S, Alpert PE, Carnes TC, Buffkin DE, Chai PR, Bushman LR, Kiser JJ, MaWhinney S, Brooks KM, Anderson PL, Castillo-Mancilla JR. Tenofovir-Diphosphate and Emtricitabine-Triphosphate Adherence Benchmarks in Dried Blood Spots for Persons with HIV Receiving Tenofovir Alafenamide and Emtricitabine-based Antiretroviral Therapy (QUANTI-TAF). Clin Infect Dis 2024:ciae212. [PMID: 38636950 DOI: 10.1093/cid/ciae212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND QUANTI-TAF aimed to establish tenofovir-diphosphate/emtricitabine-triphosphate (TFV-DP/FTC-TP) adherence benchmarks in dried blood spots (DBS) for persons with HIV (PWH) receiving tenofovir alafenamide/emtricitabine (TAF/FTC)-based antiretroviral therapy (ART). METHODS During a 16-week pharmacokinetic study, PWH received TAF/FTC-based ART co-encapsulated with an ingestible sensor to directly measure cumulative (enrollment to final visit) and 10-day adherence. At monthly visits, intraerythrocytic concentrations of TAF/FTC anabolites (TFV-DP/FTC-TP) in DBS were quantified by LC-MS/MS and summarized at steady-state (week 12 or 16) as median (IQR). Linear mixed-effects models evaluated factors associated with TFV-DP/FTC-TP. RESULTS 84 participants (86% male, 11% female, and 4% transgender), predominantly receiving bictegravir/TAF/FTC (73%) enrolled. 92% completed week 12 or 16 (94% receiving unboosted ART). TFV-DP for <85% (7/72), ≥85%-<95% (9/72), and ≥95% (56/72) cumulative adherence was 2696 (2039-4108), 3117 (2332-3339), and 3344 (2605-4293) fmol/punches. All participants with ≥85% cumulative adherence had TFV-DP ≥1800 fmol/punches. Adjusting for cumulative adherence, TFV-DP was higher with boosted ART, lower BMI, and in non-Blacks. FTC-TP for <85% (14/77), ≥85%-<95% (6/77), and ≥95% (57/77) 10-day adherence was 3.52 (2.64-4.48), 4.58 (4.39-5.06), and 4.96 (4.21-6.26) pmol/punches. All participants with ≥85% 10-day adherence had FTC-TP ≥2.5 pmol/punches. Low-level viremia (HIV-1 RNA ≥20-<200 copies/mL) occurred at 60/335 (18%) visits in 33/84 (39%) participants (range: 20-149 copies/mL), with similar TFV-DP (3177 [2494-4149] fmol/punches) compared with HIV-1 RNA <20 copies/mL visits (3279 [2580-4407] fmol/punches). CONCLUSIONS We propose PK-based TFV-DP (≥1800 fmol/punches)/FTC-TP (≥2.5 pmol/punches) benchmarks in DBS for PWH receiving unboosted TAF/FTC-based ART with ≥85% adherence. In the setting of high adherence, low-level viremia was common.
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Affiliation(s)
- Ryan P Coyle
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mary Morrow
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sarah C Mann
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Vincent Mainella
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Samuel L Ellis
- Department of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Stefanie Schwab
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Corwin Coppinger
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Nicholas Barker
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Lucas Ellison
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jia-Hua Zheng
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Subhi Al Zuabi
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | | | | | - Peter R Chai
- Department of Emergency Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Koch Institute for Integrated Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- The Fenway Institute, Boston, MA, USA
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Merck & Co., Inc., Rahway, NJ, USA
| | - Samantha MaWhinney
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kristina M Brooks
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jose R Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- ViiV Healthcare, Durham, NC, USA
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7
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Wijstma ES, Jongen VW, Boyd A, van den Elshout M, de Vries HJC, Davidovich U, Anderson PL, Prins M, Hoornenborg E, Schim van der Loeff MF. Concordance between daily diary reported PrEP intake and intraerythrocytic tenofovir diphosphate (TFV-DP) in the Amsterdam PrEP demonstration project. AIDS 2024:00002030-990000000-00467. [PMID: 38518076 DOI: 10.1097/qad.0000000000003889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
OBJECTIVE We assessed the association and concordance between self-reported oral preexposure prophylaxis (PrEP) intake in a diary app and intraerythrocytic drug metabolite concentrations. DESIGN AMPrEP was a prospective demonstration study providing daily and event-driven PrEP to MSM in Amsterdam, the Netherlands (2015-2020). METHODS Participants could record their PrEP intake in a diary app. Dried blood spots (DBS) were taken at 6, 12, 24, and 48 months and analysed for tenofovir diphosphate (TFV-DP) and emtricitabine triphosphate (FTC-TP) concentrations. We included TFV-DP measurements preceded by diary completion on at least 90% of days in the 6 weeks prior. We examined the association between self-reported PrEP intake (i.e. number of pills) and TFV-DP concentrations using tobit regression with a random intercept per participant. We also calculated concordance between categorized PrEP intake (i.e. <2, 2-3, 4-6 or 7 pills per week) and categorized TFV-DP concentrations (i.e. <350, 350-699,700-1249 or ≥1250 fmol/punch) using weighted Cohen's kappa. Last, we calculated concordance between self-reported recent PrEP intake (yes/no, in past 2 days) and quantifiability of FTC-TP (yes/no) using Cohen's kappa. RESULTS Seven hundred and fifty-nine DBS measurements from 282 MSM were included. Self-reported PrEP intake was strongly and positively associated with TFV-DP concentration (β = 0.77, 95% CI = 0.70-0.84, P < 0.0001). Concordance between categorized PrEP intake and TFV-DP concentration was moderate (κ = 0.44, 95% CI = 0.39-0.50). Concordance between self-reported recent PrEP intake and FTC-TP quantifiability was perfect (κ = 0.83, 95% CI 0.76-0.90). CONCLUSION Self-reported PrEP intake in a diary app is strongly correlated with actual use, and therefore reliable for comparing PrEP adherence between groups. Still, suboptimal criterion validity according to clinically relevant categories warrants caution when assessing 6-week reported adherence for individuals.
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Affiliation(s)
- Eline S Wijstma
- Department of Infectious Diseases, Public Health Service of Amsterdam
| | - Vita W Jongen
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Stichting HIV Monitoring
| | - Anders Boyd
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Stichting HIV Monitoring
- Amsterdam Institute for Immunology & Infection Diseases (AII)
- Department of Infectious Diseases
| | | | - Henry J C de Vries
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Amsterdam Institute for Immunology & Infection Diseases (AII)
- Department of Dermatology, Amsterdam UMC location University of Amsterdam
| | - Udi Davidovich
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Department of Social Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Anschutz Medical Campus, Aurora CO, USA
| | - Maria Prins
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Amsterdam Institute for Immunology & Infection Diseases (AII)
- Department of Infectious Diseases
| | - Elske Hoornenborg
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Amsterdam Institute for Immunology & Infection Diseases (AII)
| | - Maarten F Schim van der Loeff
- Department of Infectious Diseases, Public Health Service of Amsterdam
- Amsterdam Institute for Immunology & Infection Diseases (AII)
- Department of Infectious Diseases
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8
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Anderson PL, Marzinke MA, Glidden DV. Reply to Niu and Drain. Clin Infect Dis 2024; 78:802-803. [PMID: 37586097 PMCID: PMC10954336 DOI: 10.1093/cid/ciad486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 08/14/2023] [Indexed: 08/18/2023] Open
Affiliation(s)
- Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA
| | - Mark A Marzinke
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - David V Glidden
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
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9
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Lartey M, Ganu VJ, Tachi K, Yang H, Anderson PL, Langaee T, Ojewale O, Boamah I, Obo-Akwa A, Antwi K, Bushman LR, Ellison L, Kwara A. Association of tenofovir diphosphate and lamivudine triphosphate concentrations with HIV and hepatitis B virus viral suppression. AIDS 2024; 38:351-362. [PMID: 37861682 PMCID: PMC10842673 DOI: 10.1097/qad.0000000000003764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVE Concentrations of tenofovir diphosphate (TFV-DP) and lamivudine triphosphate (3TC-TP) in cells are correlates of medication adherence and antiviral activity. However, studies have yet to characterize the simultaneous relationship between TFV-DP and 3TC-TP concentrations with HIV and hepatitis B virus (HBV) suppression. METHODS Individuals with HIV/HBV coinfection on tenofovir disoproxil fumarate (TDF)-containing antiretroviral therapy (ART) were enrolled. Peripheral blood mononuclear cells (PBMCs) and dried blood spots (DBS) samples were collected and steady-state TFV-DP and 3TC-TP concentrations quantified using validated methods. The relationship between patient factors, TFV-DP, and 3TC-TP concentrations in PBMCs and DBS with HBV and HIV viral suppression were examined. RESULTS Of 138 participants on TDF-containing ART for a median duration (range) of 6 (0.75-15) years, the median age was 43 years and 64% were women. Overall, 128 (92.8%) and 129 (93.5%) had suppressed HIV and HBV viral loads, respectively. Of the 128 participants with suppressed HIV, 122 (95.3%) had suppressed HBV. Self-reported ART adherence, recent change to dolutegravir-based ART, TFV-DP, and 3TC-TP concentrations in PBMCs and DBS were associated with HIV RNA suppression, while HBe antigen positivity, HIV suppression, and TFV-DP concentrations in DBS were associated with HBV DNA suppression (including six persons with HBV nonsuppression and HIV suppression). CONCLUSION Long-term TDF/3TC-conatining ART was highly efficacious in individuals with HIV/HBV coinfection. Higher TFV-DP concentrations were predictive of suppression for both viruses. Persistent HBV viremia on TDF/3TC-containg ART requires additional research, but may represent poor adherence and the need for adherence interventions or novel antivirals.
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Affiliation(s)
- Margaret Lartey
- Department of Medicine and Therapeutics, University of Ghana Medical School
- Department of Medicine, Korle-Bu Teaching Hospital, Accra, Ghana
| | - Vincent J. Ganu
- Department of Medicine, Korle-Bu Teaching Hospital, Accra, Ghana
| | - Kenneth Tachi
- Department of Medicine and Therapeutics, University of Ghana Medical School
- Department of Medicine, Korle-Bu Teaching Hospital, Accra, Ghana
| | - Hongmei Yang
- Department of Biostatistics and Computational Biology, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Peter L. Anderson
- Colorado Antiviral Pharmacology Laboratory and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, Colorado
| | - Taimour Langaee
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy, University of Florida
| | - Oluwayemisi Ojewale
- Department of Medicine, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Isaac Boamah
- Department of Microbiology, School of Biomedical and Allied Health Sciences, Accra, Ghana
| | - Adjoa Obo-Akwa
- Department of Medicine and Therapeutics, University of Ghana Medical School
| | - Kenneth Antwi
- Department of Medicine, Korle-Bu Teaching Hospital, Accra, Ghana
| | - Lane R. Bushman
- Colorado Antiviral Pharmacology Laboratory and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, Colorado
| | - Lucas Ellison
- Colorado Antiviral Pharmacology Laboratory and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, Colorado
| | - Awewura Kwara
- Department of Medicine, University of Florida College of Medicine, Gainesville, Florida, USA
- Medical Service, North Florida South Georgia Veterans Health System, Gainesville, Florida, USA
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10
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Pons-Faudoa FP, Di Trani N, Capuani S, Facchi I, Wood AM, Nehete B, DeLise A, Sharma S, Shelton KA, Bushman LR, Chua CYX, Ittmann MM, Kimata JT, Anderson PL, Nehete PN, Arduino RC, Grattoni A. Antiviral potency of long-acting islatravir subdermal implant in SHIV-infected macaques. J Control Release 2024; 366:18-27. [PMID: 38142963 PMCID: PMC10922355 DOI: 10.1016/j.jconrel.2023.12.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/14/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Treatment nonadherence is a pressing issue in people living with HIV (PLWH), as they require lifelong therapy to maintain viral suppression. Poor adherence leads to antiretroviral (ARV) resistance, transmission to others, AIDS progression, and increased morbidity and mortality. Long-acting (LA) ARV therapy is a promising strategy to combat the clinical drawback of user-dependent dosing. Islatravir (ISL) is a promising candidate for HIV treatment given its long half-life and high potency. Here we show constant ISL release from a subdermal LA nanofluidic implant achieves viral load reduction in SHIV-infected macaques. Specifically, a mean delivery dosage of 0.21 ± 0.07 mg/kg/day yielded a mean viral load reduction of -2.30 ± 0.53 log10 copies/mL at week 2, compared to baseline. The antiviral potency of the ISL delivered from the nanofluidic implant was higher than oral ISL dosed either daily or weekly. At week 3, viral resistance to ISL emerged in 2 out of 8 macaques, attributable to M184V mutation, supporting the need of combining ISL with other ARV for HIV treatment. The ISL implant produced moderate reactivity in the surrounding tissue, indicating tolerability. Overall, we present the ISL subdermal implant as a promising approach for LA ARV treatment in PLWH.
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Affiliation(s)
- Fernanda P Pons-Faudoa
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Nicola Di Trani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Simone Capuani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Ilaria Facchi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Anthony M Wood
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Bharti Nehete
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Ashley DeLise
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Suman Sharma
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Kathryn A Shelton
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Lane R Bushman
- Deparment of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado- Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Corrine Ying Xuan Chua
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Michael M Ittmann
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jason T Kimata
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Peter L Anderson
- Deparment of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado- Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Pramod N Nehete
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA; The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | - Roberto C Arduino
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at The University of Texas Health Science Center, Houston, TX 77030, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA; Department of Surgery, Houston Methodist Research Institute, Houston, TX 77030, USA; Department of Radiation Oncology, Houston Methodist Research Institute, Houston, TX 77030, USA.
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11
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Mohammadi A, Etemad B, Zhang X, Li Y, Bedwell GJ, Sharaf R, Kittilson A, Melberg M, Crain CR, Traunbauer AK, Wong C, Fajnzylber J, Worrall DP, Rosenthal A, Jordan H, Jilg N, Kaseke C, Giguel F, Lian X, Deo R, Gillespie E, Chishti R, Abrha S, Adams T, Siagian A, Dorazio D, Anderson PL, Deeks SG, Lederman MM, Yawetz S, Kuritzkes DR, Lichterfeld MD, Sieg S, Tsibris A, Carrington M, Brumme ZL, Castillo-Mancilla JR, Engelman AN, Gaiha GD, Li JZ. Viral and host mediators of non-suppressible HIV-1 viremia. Nat Med 2023; 29:3212-3223. [PMID: 37957382 PMCID: PMC10719098 DOI: 10.1038/s41591-023-02611-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 09/25/2023] [Indexed: 11/15/2023]
Abstract
Non-suppressible HIV-1 viremia (NSV) is defined as persistent low-level viremia on antiretroviral therapy (ART) without evidence of ART non-adherence or significant drug resistance. Unraveling the mechanisms behind NSV would broaden our understanding of HIV-1 persistence. Here we analyzed plasma virus sequences in eight ART-treated individuals with NSV (88% male) and show that they are composed of large clones without evidence of viral evolution over time in those with longitudinal samples. We defined proviruses that match plasma HIV-1 RNA sequences as 'producer proviruses', and those that did not as 'non-producer proviruses'. Non-suppressible viremia arose from expanded clones of producer proviruses that were significantly larger than the genome-intact proviral reservoir of ART-suppressed individuals. Integration sites of producer proviruses were enriched in proximity to the activating H3K36me3 epigenetic mark. CD4+ T cells from participants with NSV demonstrated upregulation of anti-apoptotic genes and downregulation of pro-apoptotic and type I/II interferon-related pathways. Furthermore, participants with NSV showed significantly lower HIV-specific CD8+ T cell responses compared with untreated viremic controllers with similar viral loads. We identified potential critical host and viral mediators of NSV that may represent targets to disrupt HIV-1 persistence.
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Affiliation(s)
- Abbas Mohammadi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Valley Health System, Las Vegas, NV, USA
| | - Behzad Etemad
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xin Zhang
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Beijing Friendship Hospital Pinggu Campus, Capital Medical University, Beijing, China
| | - Yijia Li
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- University of Pittsburgh, Pittsburgh, PA, USA
| | - Gregory J Bedwell
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Radwa Sharaf
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Autumn Kittilson
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Meghan Melberg
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Charles R Crain
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
| | - Anna K Traunbauer
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Colline Wong
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jesse Fajnzylber
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Alex Rosenthal
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Hannah Jordan
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nikolaus Jilg
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Clarety Kaseke
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
| | - Francoise Giguel
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiaodong Lian
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
| | - Rinki Deo
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Rida Chishti
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara Abrha
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Taylor Adams
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Abigail Siagian
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Dominic Dorazio
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Peter L Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Steven G Deeks
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, CA, USA
| | - Michael M Lederman
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Sigal Yawetz
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Mathias D Lichterfeld
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
| | - Scott Sieg
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Athe Tsibris
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Mary Carrington
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
- Basic Science Program, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD, USA
- Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Zabrina L Brumme
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
- British Columbia Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Jose R Castillo-Mancilla
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Alan N Engelman
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Gaurav D Gaiha
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
| | - Jonathan Z Li
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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12
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Musinguzi N, Ngure K, Bukusi EA, Mugo NR, Baeten JM, Anderson PL, Haberer JE. Performance of Multiple Adherence Measures for pre-exposure Prophylaxis (PrEP) Among Young Women in Kenya. AIDS Behav 2023; 27:3961-3969. [PMID: 37351684 DOI: 10.1007/s10461-023-04111-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2023] [Indexed: 06/24/2023]
Abstract
Understanding PrEP adherence is key in the formulation of HIV prevention strategies; however, measurement of adherence can be challenging. We compared multiple adherence measures in a two-year study of young Kenyan women at high risk of HIV acquisition. Among 289 participants, concordance between electronic adherence monitoring (EAM) and tenofovir diphosphate (TFV-DP) in dried blood spots ranged from 57 to 72% depending on selected thresholds. Using area under the receiver operating curve, discrimination of quantifiable TFV-DP was high at 0.85 with EAM and low at 0.49-0.54 for multiple self-reported measures. Correlation between EAM and self-reported measures was low (r < 0.11) although correlation within self-reported measures was moderate (r > 0.69). These findings indicate that both TFV-DP and EAM are useful PrEP adherence tools. Adherence would benefit from better availability of less expensive versions of both measurement tools. Additionally, further research on TFV-DP thresholds is needed to inform interpretation and use in understanding PrEP adherence in this population.
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Affiliation(s)
- Nicholas Musinguzi
- Global Health Collaborative, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - Kenneth Ngure
- Center for Clinical Research (CCR), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
- Department of Community Health, Jomo Kenyatta University of Agriculture and Technology, Juja, Kenya
| | - Elizabeth A Bukusi
- Department of Obstetrics and Gynecology, University of Washington, Seattle, USA
- Department of Global Health, University of Washington, Seattle, USA
- Center for Microbiology Research (CMR), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - Nelly R Mugo
- Center for Clinical Research (CCR), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
- Department of Global Health, University of Washington, Seattle, USA
| | - Jared M Baeten
- Department of Global Health, University of Washington, Seattle, USA
- Department of Epidemiology, University of Washington, Seattle, USA
- Department of Medicine, University of Washington, Seattle, USA
| | - Peter L Anderson
- Colorado Antiviral Pharmacology Laboratory, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, USA
| | - Jessica E Haberer
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
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13
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Landovitz RJ, Hanscom BS, Clement ME, Tran HV, Kallas EG, Magnus M, Sued O, Sanchez J, Scott H, Eron JJ, Del Rio C, Fields SD, Marzinke MA, Eshleman SH, Donnell D, Spinelli MA, Kofron RM, Berman R, Piwowar-Manning EM, Richardson PA, Sullivan PA, Lucas JP, Anderson PL, Hendrix CW, Adeyeye A, Rooney JF, Rinehart AR, Cohen MS, McCauley M, Grinsztejn B. Efficacy and safety of long-acting cabotegravir compared with daily oral tenofovir disoproxil fumarate plus emtricitabine to prevent HIV infection in cisgender men and transgender women who have sex with men 1 year after study unblinding: a secondary analysis of the phase 2b and 3 HPTN 083 randomised controlled trial. Lancet HIV 2023; 10:e767-e778. [PMID: 37952550 DOI: 10.1016/s2352-3018(23)00261-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Injectable cabotegravir was superior to daily oral tenofovir disoproxil fumarate plus emtricitabine for HIV prevention in two clinical trials. Both trials had the primary aim of establishing the HIV prevention efficacy of long-acting injectable cabotegravir pre-exposure prophylaxis (PrEP) compared with tenofovir disoproxil fumarate plus emtricitabine daily oral PrEP. Long-acting PrEP was associated with diagnostic delays and integrase strand-transfer inhibitor (INSTI) resistance. This report presents findings from the first unblinded year of the HIV Prevention Trials Network (HPTN) 083 study. METHODS The HPTN 083 randomised controlled trial enrolled HIV-uninfected cisgender men and transgender women at elevated HIV risk who have sex with men, from 43 clinical research sites in Africa, Asia, Latin America, and the USA. Inclusion criteria included: a negative HIV serological test at the screening and study entry, undetectable HIV RNA levels within 14 days of study entry, age 18 years or older, overall good health as determined by clinical and laboratory evaluations, and a creatinine clearance of 60 mL/min or higher. Participants were randomly allocated to receive long-acting injectable cabotegravir or daily oral tenofovir disoproxil fumarate plus emtricitabine PrEP. After study unblinding, participants remained on their original regimen awaiting an extension study. HIV infections were characterised retrospectively at a central laboratory. Here we report the secondary analysis of efficacy and safety for the first unblinded year. The primary outcome was incident HIV infection. Efficacy analyses were done on the modified intention-to-treat population using a Cox regression model. Adverse events were compared across treatment groups and time periods (blinded vs unblinded). This trial is registered with ClinicalTrials.gov, NCT02720094. FINDINGS Of the 4488 participants who contributed person-time to the blinded analysis, 3290 contributed person-time to the first unblinded year analysis between May 15, 2020, and May 14, 2021. Updated HIV incidence in the blinded phase was 0·41 per 100 person-years for long-acting injectable cabotegravir PrEP and 1·29 per 100 person-years for daily oral tenofovir disoproxil fumarate plus emtricitabine PrEP (hazard ratio [HR] 0·31 [95% CI 0·17-0·58], p=0·0003). HIV incidence in the first unblinded year was 0·82 per 100 person-years for long-acting PrEP and 2·27 per 100 person-years for daily oral PrEP (HR 0·35 [0·18-0·69], p=0·002). Adherence to both study products decreased after study unblinding. Additional infections in the long-acting PrEP group included two with on-time injections; three with one or more delayed injections; two detected with long-acting PrEP reinitiation; and 11 more than 6 months after their last injection. Infection within 6 months of cabotegravir exposure was associated with diagnostic delays and INSTI resistance. Adverse events were generally consistent with previous reports; incident hypertension in the long-acting PrEP group requires further investigation. INTERPRETATION Long-acting injectable cabotegravir PrEP retained high efficacy for HIV prevention in men and transgender women who have sex with men during the first year of open-label follow-up, with a near-identical HR for HIV risk reduction between long-acting injectable cabotegravir and daily oral tenofovir disoproxil fumarate plus emtricitabine PrEP during the first year after unblinding compared with the blinded period. Extended follow-up further defined the risk period for diagnostic delays and emergence of INSTI resistance. FUNDING Division of AIDS at the National Institute of Allergy and Infectious Diseases, ViiV Healthcare, and Gilead Sciences.
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Affiliation(s)
- Raphael J Landovitz
- Center for Clinical AIDS Research and Education, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
| | | | | | - Ha V Tran
- Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Esper G Kallas
- Department of Parasitic and Infectious Diseases, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Manya Magnus
- Department of Epidemiology, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Omar Sued
- Fundación Huésped, Buenos Aires, Argentina
| | - Jorge Sanchez
- Centro de Investigaciones Tecnologicas, Biomedicas y Medioambientales, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Hyman Scott
- San Francisco Department of Public Health, San Francisco, CA, USA
| | - Joe J Eron
- Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Carlos Del Rio
- Emory University School of Medicine and Grady Health System, Atlanta, GA, USA
| | - Sheldon D Fields
- Ross and Carol Nese College of Nursing, Pennsylvania State University, University Park, PA, USA
| | - Mark A Marzinke
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | | | - Matthew A Spinelli
- Division of HIV, Infectious Diseases, and Global Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Ryan M Kofron
- Center for Clinical AIDS Research and Education, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Richard Berman
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | | | | | | | - Peter L Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, Anschutz Medical Campus, Aurora, CO, USA
| | - Craig W Hendrix
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Adeola Adeyeye
- Division of AIDS, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | | | | | - Myron S Cohen
- Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Beatriz Grinsztejn
- Instituto Nacional de Infectologia Evandro Chagas-Fiocruz, Rio de Janeiro, Brazil
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14
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Robbins RN, Kluisza L, Nguyen N, Dolezal C, Leu CS, Wiznia A, Abrams EJ, Anderson PL, Castillo-Mancilla JR, Mellins CA. Measuring ART Adherence Among Young Adults with Perinatally Acquired HIV: Comparison Between Self-report, Telephone-Based Pill Count, and Objective Pharmacologic Measures. AIDS Behav 2023; 27:3927-3931. [PMID: 37326692 PMCID: PMC10919291 DOI: 10.1007/s10461-023-04107-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
Tenofovir diphosphate (TVF-DP) can be quantified in red blood cells (RBCs) and dried blood spots (DBS) and can objectively measure ART adherence and predict viral suppression. Data on the association of TFV-DP with viral load are very limited in adolescents and young adults (AYA) living with perinatally-acquired HIV (PHIV), as are data comparing TFV-DP to other measures of ART adherence, such as self-report and unannounced telephone pill count. Viral load and ART adherence (self-report, TFV-DP and unannounced telephone pill count) were assessed and compared among 61 AYAPHIV recruited from an ongoing longitudinal study (CASAH) in New York City.
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Affiliation(s)
- R N Robbins
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA.
| | - L Kluisza
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
| | - N Nguyen
- Aaron Diamond AIDS Research Center, Columbia University Irving Medical Center, New York, USA
| | - C Dolezal
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
| | - C S Leu
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
| | - A Wiznia
- Department of Pediatrics, Albert Einstein College of Medicine and Jacobi Medical Center, Bronx, NY, USA
| | - E J Abrams
- Mailman School of Public Health, ICAP at Columbia University, New York, USA
| | - P L Anderson
- University of Colorado Anschutz Medical Campus School of Medicine, Aurora, USA
| | | | - C A Mellins
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
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15
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Huang Y, Zhang L, Karuna S, Andrew P, Juraska M, Weiner JA, Angier H, Morgan E, Azzam Y, Swann E, Edupuganti S, Mgodi NM, Ackerman ME, Donnell D, Gama L, Anderson PL, Koup RA, Hural J, Cohen MS, Corey L, McElrath MJ, Gilbert PB, Lemos MP. Adults on pre-exposure prophylaxis (tenofovir-emtricitabine) have faster clearance of anti-HIV monoclonal antibody VRC01. Nat Commun 2023; 14:7813. [PMID: 38016958 PMCID: PMC10684488 DOI: 10.1038/s41467-023-43399-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023] Open
Abstract
Broadly neutralizing monoclonal antibodies (mAbs) are being developed for HIV-1 prevention. Hence, these mAbs and licensed oral pre-exposure prophylaxis (PrEP) (tenofovir-emtricitabine) can be concomitantly administered in clinical trials. In 48 US participants (men and transgender persons who have sex with men) who received the HIV-1 mAb VRC01 and remained HIV-free in an antibody-mediated-prevention trial (ClinicalTrials.gov #NCT02716675), we conduct a post-hoc analysis and find that VRC01 clearance is 0.08 L/day faster (p = 0.005), and dose-normalized area-under-the-curve of VRC01 serum concentration over-time is 0.29 day/mL lower (p < 0.001) in PrEP users (n = 24) vs. non-PrEP users (n = 24). Consequently, PrEP users are predicted to have 14% lower VRC01 neutralization-mediated prevention efficacy against circulating HIV-1 strains. VRC01 clearance is positively associated (r = 0.33, p = 0.03) with levels of serum intestinal Fatty Acid Binding protein (I-FABP), a marker of epithelial intestinal permeability, which is elevated upon starting PrEP (p = 0.04) and after months of self-reported use (p = 0.001). These findings have implications for the evaluation of future HIV-1 mAbs and postulate a potential mechanism for mAb clearance in the context of PrEP.
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Affiliation(s)
- Yunda Huang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA.
- Department of Global Health, University of Washington, Seattle, WA, 98196, USA.
| | - Lily Zhang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Shelly Karuna
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | | | - Michal Juraska
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Joshua A Weiner
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Heather Angier
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Evgenii Morgan
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Yasmin Azzam
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Edith Swann
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Rockville, MD, 46340, USA
| | - Srilatha Edupuganti
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Nyaradzo M Mgodi
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | | | - Deborah Donnell
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Lucio Gama
- Vaccine Research Center (VRC), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Peter L Anderson
- Colorado Antiviral Pharmacology Laboratory and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045, USA
| | - Richard A Koup
- Vaccine Research Center (VRC), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - John Hural
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
| | - Myron S Cohen
- Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
- Departments of Medicine and Laboratory Medicine, University of Washington, Seattle, WA, 98195, USA
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
- Department of Global Health, University of Washington, Seattle, WA, 98196, USA
- Departments of Medicine and Laboratory Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Peter B Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
- Department of Biostatistics, University of Washington, Seattle, WA, 98195, USA
| | - Maria P Lemos
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, 98109, USA
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16
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Moore M, Stansfield S, Donnell DJ, Boily MC, Mitchell KM, Anderson PL, Delany-Moretlwe S, Bekker LG, Mgodi NM, Celum CL, Dimitrov D. Efficacy estimates of oral pre-exposure prophylaxis for HIV prevention in cisgender women with partial adherence. Nat Med 2023; 29:2748-2752. [PMID: 37798438 DOI: 10.1038/s41591-023-02564-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/23/2023] [Indexed: 10/07/2023]
Abstract
Pre-exposure prophylaxis (PrEP) with tenofovir (TFV) disoproxil fumarate and emtricitabine administered orally daily is effective in preventing human immunodeficiency virus (HIV) acquisition in both men and women with sufficient adherence; however, the adherence-efficacy relationship in cisgender women has not been well established. We calculated the adherence-efficacy curve for cisgender women by using HIV incidence and plasma TFV concentration data from three trials (FEM-PrEP, VOICE and Partners PrEP). We imputed TFV diphosphate (TFV-DP) concentrations, a measure of long-term adherence, from TFV quantification by using data from the HIV Prevention Trials Network 082 study, which measured both TFV-DP and TFV concentrations. Two, four and seven pills per week reduced HIV incidence by 59.3% (95% credible interval (CrI) 29.9-95.8%), 83.8% (95% CI 51.7-99.8%) and 95.9% (95% CI 72.6-100%), respectively. Our adherence-efficacy curve can be validated and updated by HIV prevention studies that directly measure TFV-DP concentrations. The curve suggests that high adherence confers high protection in cisgender women. However, the lower efficacy with partial adherence highlights the need for new PrEP products and interventions to increase adherence.
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Affiliation(s)
- Mia Moore
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
- HPTN Modelling Centre, Imperial College London, London, UK.
| | - Sarah Stansfield
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- HPTN Modelling Centre, Imperial College London, London, UK
| | - Deborah J Donnell
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Marie-Claude Boily
- HPTN Modelling Centre, Imperial College London, London, UK
- Medical Research Council Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, UK
| | - Kate M Mitchell
- HPTN Modelling Centre, Imperial College London, London, UK
- Medical Research Council Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, UK
| | - Peter L Anderson
- Anschutz Medical Campus, University of Colorado, Aurora, CO, USA
| | | | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Nyaradzo M Mgodi
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Connie L Celum
- Departments of Global Health, Medicine and Epidemiology, University of Washington, Seattle, WA, USA
| | - Dobromir Dimitrov
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- HPTN Modelling Centre, Imperial College London, London, UK
- Department of Applied Mathematics, University of Washington, Seattle, WA, USA
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17
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Ferraris CM, D'avanzo PA, Jennings L, Robbins RN, Nguyen N, Leu CS, Dolezal C, Mgbako O, Hsiao NY, Joska J, Castillo-Mancilla JR, Myer L, Anderson PL, Belaunzarán-Zamudio PF, Mellins CA, Orrell C, Remien RH. Acceptability and Feasibility of Providing Adherence Feedback Based on Tenofovir Diphosphate in Dried Blood Spots: Results from a Pilot Study Among Patients and Providers in Cape Town, South Africa. AIDS Behav 2023; 27:3478-3486. [PMID: 37043053 PMCID: PMC10811583 DOI: 10.1007/s10461-023-04063-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2023] [Indexed: 04/13/2023]
Abstract
Tenofovir diphosphate (TFV-DP) concentrations in dried blood spots (DBS) predict viral breakthrough, but their use remains understudied in real-world clinic settings. This pilot study examined acceptability, feasibility, and initial adherence outcomes of providing adherence feedback using TFV-DP concentrations on patient- and provider-levels in Cape Town, South Africa. We enrolled 60 persons with HIV (PWH) receiving tenofovir-containing ART attending a primary health clinic. They were randomized 1:1 to an intervention receiving TFV-DP concentration feedback by research staff vs. no feedback at monthly visits for 4 months. Acceptability among medical providers and level of clinical follow-up of TFV-DP results was examined. Patient acceptability was assessed descriptively. Mean electronic adherence (EA), as measured by WisePill device, and TFV-DP in DBS were compared between the two arms. All participants in the intervention group (100%) reported finding TFV-DP feedback helpful and 86% reported changing adherence behaviors. Medical providers indicated high acceptability of incorporating TFV-DP concentration feedback into the clinic, yet among 29 results < 1000 fmol/punch, only 2 were reviewed with no follow-up actions performed. In the intervention arm, mean TFV-DP concentrations were significantly higher (t = 2.5, p < .01) during follow-up and EA in upper quartile (96-100%) was greater compared to controls (x2 = 7.8, p ≤ .05). This study found high acceptability among patients for receiving adherence feedback based on TFV-DP concentrations. TFV-DP and EA data demonstrated greater adherence in the intervention group. Providers indicated high acceptability of incorporating TFV-DP feedback into the clinic, but few providers reviewed results, which could impact clinic-level feasibility.
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Affiliation(s)
- Christopher M Ferraris
- HIV Center for Clinical and Behavioral Studies, Psychiatric Institute, Columbia University, New York, NY, USA.
- Division of Gender, Sexuality and Health, New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY, 10032, USA.
| | - Paul A D'avanzo
- HIV Center for Clinical and Behavioral Studies, Psychiatric Institute, Columbia University, New York, NY, USA
| | - Lauren Jennings
- Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine, Department of Medicine, University of Cape Town, Cape Town, South Africa.
- Desmond Tutu Health Foundation, 3 Woodlands Rd, Woodstock, Cape Town, 7925, South Africa.
| | - Reuben N Robbins
- HIV Center for Clinical and Behavioral Studies, Psychiatric Institute, Columbia University, New York, NY, USA
| | - Nadia Nguyen
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Cheng-Shiun Leu
- Columbia University Mailman School of Public Health, New York, NY, USA
| | - Curtis Dolezal
- HIV Center for Clinical and Behavioral Studies, Psychiatric Institute, Columbia University, New York, NY, USA
| | - Ofole Mgbako
- Division of Infectious Diseases, Department of Medicine, NYU Langone Health, New York, NY, USA
| | - Nei-Yuan Hsiao
- National Health Laboratory Service, Cape Town, South Africa
- University of Cape Town, Cape Town, South Africa
| | - John Joska
- University of Cape Town, Cape Town, South Africa
| | | | - Landon Myer
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | | | - Pablo F Belaunzarán-Zamudio
- Contractor for the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Claude A Mellins
- HIV Center for Clinical and Behavioral Studies, Psychiatric Institute, Columbia University, New York, NY, USA
| | - Catherine Orrell
- Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Robert H Remien
- HIV Center for Clinical and Behavioral Studies, Psychiatric Institute, Columbia University, New York, NY, USA
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18
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Singh Y, Castillo-Mancilla J, Madimabe R, Jennings L, Ferraris CM, Robbins RN, Anderson PL, Remien RH, Orrell C. Tenofovir diphosphate in dried blood spots and HIV-1 resistance in South Africa. AIDS Res Ther 2023; 20:67. [PMID: 37705102 PMCID: PMC10500931 DOI: 10.1186/s12981-023-00552-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/29/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND Suboptimal antiretroviral (ART) adherence can lead to virologic failure with consequent HIV-1 resistance. Tenofovir diphosphate (TFV-DP) in dried blood spots (DBS) is a powerful biomarker of cumulative adherence, predictive of future viremia. It has been associated with resistance in Persons With HIV (PWH) in South Africa and the US. We explored the relationship of TFV-DP concentrations with antiretroviral drug resistance at the time of treatment failure in SA. METHODS Adult PWH from health clinics in Cape Town, South Africa on efavirenz-based first-line ART containing tenofovir disoproxil fumarate (TDF) with an undetectable (< 50 copies/mL) HIV-1 viral load (VL) were prospectively enrolled in an observational cohort for 12 months. Monthly study visits included blood collection for HIV-1 VL and DBS for TFV-DP. The first confirmed viral breakthrough (VB) > 400 copies/mL triggered HIV-1 genotyping at the subsequent visit. An electronic adherence (EA) device monitored ART adherence in real-time, estimated as a percent for the 30-days prior to VB. Wilcoxon rank sum test was used to compare median [IQR] TFV-DP by genotype outcome. RESULTS Of 250 individuals, (n = 195, 78% women), 21 experienced VB, with a median of 5 [4;7] months on study, and a median EA of 33.3 [13.3;53.3]%. Demographic characteristics between those with and without VB were similar. Median VL at VB was 4.0 [3.2;4.5] log copies/mL. TFV-DP concentrations trended down towards the VB visit. Median TFV-DP concentrations were significantly higher in those HIV-1 genotype did not amplify due to being virally suppressed at the subsequent visit (n = 10; 380 [227-661] fmol/punch, p = 0.035; EA 45 [24.9; 59.2]%); than in those who were successfully genotyped with evidence of drug resistance (n = 5, 241 [150-247] fmol/punch, EA 20 [6.7;36.7]%) and in individuals who did not have resistance (n = 3, 39.9 [16.6; 93.9] fmol/punch; EA 33.3 [16-38]%). Three genotype collections were not done. Only non-nucleoside reverse transcriptase inhibitor-associated mutations were identified on resistance testing. (K103N, E138K, Y118H). CONCLUSION TFV-DP in DBS showed a step-wise inverse relationship with VB and drug resistance, with evidence of low cumulative ART adherence in PWH who developed antiretroviral resistance. Monitoring TFV-DP concentrations could be a valuable tool for predicting future VB and future resistance.
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Affiliation(s)
- Y Singh
- Desmond Tutu HIV Centre, Institute of Infectious Diseases and Molecular Medicine and Department of Medicine, University of Cape Town, Cape Town, South Africa.
| | | | - R Madimabe
- Desmond Tutu HIV Centre, Institute of Infectious Diseases and Molecular Medicine and Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - L Jennings
- Desmond Tutu HIV Centre, Institute of Infectious Diseases and Molecular Medicine and Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - C M Ferraris
- New York State Psychiatric Institute, New York, USA
| | - R N Robbins
- New York State Psychiatric Institute, New York, USA
- Columbia University Irving Medical Center, New York, USA
| | | | - R H Remien
- New York State Psychiatric Institute, New York, USA
- Columbia University Irving Medical Center, New York, USA
| | - C Orrell
- Desmond Tutu HIV Centre, Institute of Infectious Diseases and Molecular Medicine and Department of Medicine, University of Cape Town, Cape Town, South Africa
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19
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Pintye J, Kinuthia J, Abuna F, Anderson PL, Dettinger JC, Gomez L, Haberer JE, Marwa MM, Ngumbau N, Omondi P, Odhiambo B, Stern J, Watoyi S, Baeten JM, John-Stewart G. HIV pre-exposure prophylaxis initiation, persistence, and adherence during pregnancy through the postpartum period. AIDS 2023; 37:1725-1737. [PMID: 37289583 PMCID: PMC10527305 DOI: 10.1097/qad.0000000000003617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE We evaluated pre-exposure prophylaxis (PrEP) initiation, persistence, and adherence measured via tenofovir-diphosphate (TFV-DP) concentrations in dried blood spots (DBS) among women offered PrEP during pregnancy. METHODS We prospectively analyzed data from participants in the PrIMA Study (NCT03070600) who were offered PrEP during the second trimester and followed through 9 months postpartum. At follow-up visits (monthly in pregnancy; 6 weeks, 6 months, 9 months postpartum), self-reported PrEP use was assessed, and DBS were collected for quantifying TFV-DP concentrations. RESULTS In total, 2949 participants were included in the analysis. At enrollment, median age was 24 years [interquartile range IQR) 21-29], gestational age 24 weeks (IQR 20-28), and 4% had a known partner living with HIV. Overall, 405 (14%) participants initiated PrEP in pregnancy with higher frequency among those with risk factors for HIV acquisition, including >2 lifetime sexual partners, syphilis during pregnancy, forced sex, and intimate partner violence ( P < 0.05). At 9 months postpartum, 58% of PrEP initiators persisted with PrEP use, of which 54% self-reported not missing any PrEP pills in the last 30 days. Among DBS randomly selected from visits where participants persisted with PrEP ( n = 427), 50% had quantifiable TFV-DP. Quantifiable TFV-DP was twice as likely in pregnancy than postpartum [adjusted risk ratio (aRR) = 1.90, 95% confidence interval (CI) 1.40-2.57, P < 0.001]. Having a partner known to be living with HIV was the strongest predictor of PrEP initiation, persistence, and quantifiable TFV-DP ( P < 0.001). CONCLUSIONS PrEP persistence and adherence waned postpartum, though over half of PrEP initiators persisted through 9-months postpartum. Interventions should prioritize increasing knowledge of partner HIV status and sustaining adherence in the postpartum period.
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Affiliation(s)
| | - John Kinuthia
- University of Washington, Seattle, Washington, USA
- Kenyatta National Hospital, Nairobi, Kenya
| | | | | | | | - Laurén Gomez
- University of Washington, Seattle, Washington, USA
| | | | | | | | | | | | - Joshua Stern
- University of Washington, Seattle, Washington, USA
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20
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Jennings L, Ferraris CM, Castillo-Mancilla JR, Robbins RN, Nguyen N, Leu CS, Dolezal C, Hsiao NY, Mgbako O, Joska J, Myer L, Anderson PL, Remien RH, Orrell C. Comparing Predictive Ability of Two Objective Adherence Measures in a Community-Based Cohort on Antiretroviral Therapy in South Africa: Tenofovir Diphosphate Concentrations and Electronic Adherence Monitors. J Acquir Immune Defic Syndr 2023; 93:327-332. [PMID: 36976520 PMCID: PMC10287050 DOI: 10.1097/qai.0000000000003198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/06/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND Electronic adherence (EA) and tenofovir diphosphate (TFV-DP) in dried blood spots (DBS) are objective measures of antiretroviral therapy (ART) adherence. We characterized the association between these measures in a prospective cohort of persons with HIV (PWH) on ART. SETTING Four primary health clinics in Cape Town, South Africa. METHODS We enrolled 250 virally suppressed PWH receiving tenofovir-based ART. We collected EA data, monthly viral load, and TFV-DP in DBS for 12 months. We used logistic regression to estimate the adjusted odds ratio (aOR) and 95% confidence intervals (CIs) for future viral breakthrough (VB) (>400 copies/mL) for each adherence measure. Receiver operating characteristics (ROCs) provided the predictive power of these measures. RESULTS Participants had a median (IQR) age of 34 (27-42); 78% were women. Twenty-one (8%) developed VB. Logistic regression showed that when percent EA and TFV-DP concentrations increased, the odds of VB decreased. This relationship was consistent at the time of VB (aOR of 0.41 [95% CI: 0.25 to 0.66] for TFV-DP and aOR of 0.64 [95% CI: 0.54 to 0.76] for EA) and for up to 2 months before VB. Both adherence measures predicted future VB at both 1 month and 2 months before viral load measurement. CONCLUSION We established that 2 objective adherence measures, EA and TFV-DP in DBS, have a positive association with, and are both strongly predictive of, VB in a community-based South African cohort on ART. Future research is needed to determine the feasibility of implementing these adherence measures in resource-limited settings to facilitate adherence interventions.
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Affiliation(s)
- Lauren Jennings
- Desmond Tutu Health Foundation, Institute of Infectious Diseases and Molecular Medicine and the Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Christopher M. Ferraris
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University, New York, NY
| | | | - Reuben N. Robbins
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University, New York, NY
| | - Nadia Nguyen
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY
| | - Cheng-Shiun Leu
- Columbia University Mailman School of Public Health, New York, NY
| | - Curtis Dolezal
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University, New York, NY
| | - Nei-yuan Hsiao
- National Health Laboratory Service, Cape Town, South Africa
| | - Ofole Mgbako
- Division of Infectious Diseases, Department of Medicine, NYU Langone Health, New York, NY
| | - John Joska
- HIV Mental Health Research Unit, University of Cape Town, Cape Town, South Africa; and
| | - Landon Myer
- Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | | | - Robert H. Remien
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University, New York, NY
| | - Catherine Orrell
- Desmond Tutu Health Foundation, Institute of Infectious Diseases and Molecular Medicine and the Department of Medicine, University of Cape Town, Cape Town, South Africa
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21
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van den Elshout MA, Hoornenborg E, Coyer L, Anderson PL, Davidovich U, de Vries HJ, Prins M, Schim van der Loeff MF. Determinants of adherence to daily PrEP measured as intracellular tenofovir diphosphate concentrations over 24 months of follow-up among men who have sex with men. Sex Transm Infect 2023; 99:303-310. [PMID: 37258273 PMCID: PMC10359585 DOI: 10.1136/sextrans-2022-055499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/16/2022] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES Adherence is key to the effectiveness of oral pre-exposure prophylaxis (PrEP) to prevent HIV. Therefore, we aimed to explore factors associated with adherence to daily PrEP (dPrEP). METHODS Men who have sex with men (MSM) using dPrEP (emtricitabine/tenofovir disoproxil) within the Amsterdam PrEP demonstration project at the Public Health Service of Amsterdam, provided dried blood spots (DBS) 12 and 24 months after PrEP initiation. From DBS, we determined intracellular tenofovir diphosphate (TFV-DP) concentrations to assess adherence; TFV-DP ≥700 fmol/punch was considered adequate. We assessed associations of sociodemographic, clinical and behavioural characteristics with TFV-DP concentrations using multivariable linear regression. RESULTS Of 263 participants who attended 12-month or 24-month study visits while on dPrEP, 257 (97.7%) provided DBS at one or both visits (492 DBS in total). Median TFV-DP concentration was 1299 (IQR 1021-1627) fmol/punch (12 months: 1332 (1087-1687); 24 months: 1248 (929-1590]). Higher TFV-DP concentrations were associated with: older age (p=0.0008), condomless anal sex with a casual partner in 6 months preceding PrEP initiation (+166 fmol/punch; 95% CI 36.5 to 296) and using a mobile application providing visualised feedback on PrEP use and sexual behaviour (+146 fmol/punch; 95% CI 28.1 to 263). Lower TFV-DP concentrations were associated with longer duration of PrEP use (24 vs 12 months; -91.5 fmol/punch; 95% CI -155 to -28.1). Time-updated number of sex partners, diagnosed STIs and chemsex were not associated with TFV-DP concentrations. CONCLUSIONS Overall, TFV-DP concentrations were high among MSM using dPrEP, indicating excellent adherence. Especially older participants, those who reported condomless anal sex with a casual partner prior to PrEP initiation and those who used an app with visualised feedback showed higher levels of adherence. As TFV-DP concentrations had decreased slightly at 2 years of PrEP use when compared with 1 year, we emphasise the importance of adherence counselling to those who continue using PrEP. TRIAL REGISTRATION NUMBER NL5413.
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Affiliation(s)
- Mark Am van den Elshout
- Department of Infectious Diseases Research, Public Health Service Amsterdam, Amsterdam, The Netherlands
| | - Elske Hoornenborg
- Department of Infectious Diseases Research, Public Health Service Amsterdam, Amsterdam, The Netherlands
| | - Liza Coyer
- Department of Infectious Diseases Research, Public Health Service Amsterdam, Amsterdam, The Netherlands
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Udi Davidovich
- Department of Infectious Diseases Research, Public Health Service Amsterdam, Amsterdam, The Netherlands
- Department of Social Psychology, University of Amsterdam Faculty of Social and Behavioural Sciences, Amsterdam, The Netherlands
| | - Henry Jc de Vries
- Department of Infectious Diseases Research, Public Health Service Amsterdam, Amsterdam, The Netherlands
- Amsterdam Institute for Infection & Immunity (AII), Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Maria Prins
- Department of Infectious Diseases Research, Public Health Service Amsterdam, Amsterdam, The Netherlands
- Amsterdam Institute for Infection & Immunity (AII), Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
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22
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Hirsh ML, Edwards JA, Robichaux C, Brijkumar J, Moosa MYS, Ofotokun I, Johnson BA, Pillay S, Pillay M, Moodley P, Sun YV, Liu C, Dudgeon MR, Ordoñez C, Kuritzkes DR, Sunpath H, Morrow M, Anderson PL, Ellison L, Bushman LR, Marconi VC, Castillo-Mancilla JR. Food Insecurity Is Associated With Low Tenofovir Diphosphate in Dried Blood Spots in South African Persons With HIV. Open Forum Infect Dis 2023; 10:ofad360. [PMID: 37469618 PMCID: PMC10352648 DOI: 10.1093/ofid/ofad360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Indexed: 07/21/2023] Open
Abstract
Background Food insecurity has been linked to suboptimal antiretroviral therapy (ART) adherence in persons with HIV (PWH). This association has not been evaluated using tenofovir diphosphate (TFV-DP) in dried blood spots (DBSs), a biomarker of cumulative ART adherence and exposure. Methods Within a prospective South African cohort of treatment-naive PWH initiating ART, a subset of participants with measured TFV-DP in DBS values was assessed for food insecurity status. Bivariate and multivariate median-based regression analysis compared the association between food insecurity and TFV-DP concentrations in DBSs adjusting for age, sex, ethnicity, medication possession ratio (MPR), and estimated glomerular filtration rate. Results Drug concentrations were available for 285 study participants. Overall, 62 (22%) PWH reported worrying about food insecurity and 44 (15%) reported not having enough food to eat in the last month. The crude median concentrations of TFV-DP in DBSs differed significantly between those who expressed food insecurity worry versus those who did not (599 [interquartile range {IQR}, 417-783] fmol/punch vs 716 [IQR, 453-957] fmol/punch; P = .032). In adjusted median-based regression, those with food insecurity worry had concentrations of TFV-DP that were 155 (95% confidence interval, -275 to -35; P = .012) fmol/punch lower than those who did not report food insecurity worry. Age and MPR remained significantly associated with TFV-DP. Conclusions In this study, food insecurity worry is associated with lower TFV-DP concentrations in South African PWH. This highlights the role of food insecurity as a social determinant of HIV outcomes including ART failure and resistance.
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Affiliation(s)
- Molly L Hirsh
- Augusta University/University of Georgia Medical Partnership, Medical College of Georgia, Athens, Georgia, USA
| | - Jonathan A Edwards
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- School of Health and Social Care, University of Lincoln, Lincoln, United Kingdom
| | - Chad Robichaux
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jaysingh Brijkumar
- Department of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | | | - Igho Ofotokun
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Brent A Johnson
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, New York, USA
| | - Selvan Pillay
- Department of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Melendhran Pillay
- Department of Medicine, National Health Laboratory Service, Durban, South Africa
| | - Pravi Moodley
- Department of Medicine, National Health Laboratory Service, Durban, South Africa
| | - Yan V Sun
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Chang Liu
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Mathew R Dudgeon
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Claudia Ordoñez
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Daniel R Kuritzkes
- Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Henry Sunpath
- Department of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Mary Morrow
- Department of Biostatistics and Bioinformatics, Colorado School of Public Health, Aurora, Colorado, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lucas Ellison
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Vincent C Marconi
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Department of Medicine, National Health Laboratory Service, Durban, South Africa
- Emory Vaccine Center, Emory University, Atlanta, Georgia, USA
| | - Jose R Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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23
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Pons-Faudoa FP, Di Trani N, Capuani S, Campa-Carranza JN, Nehete B, Sharma S, Shelton KA, Bushman LR, Abdelmawla F, Williams M, Roon L, Nerguizian D, Chua CYX, Ittmann MM, Nichols JE, Kimata JT, Anderson PL, Nehete PN, Arduino RC, Grattoni A. Long-acting refillable nanofluidic implant confers protection against SHIV infection in nonhuman primates. Sci Transl Med 2023; 15:eadg2887. [PMID: 37379369 DOI: 10.1126/scitranslmed.adg2887] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 06/09/2023] [Indexed: 06/30/2023]
Abstract
The impact of pre-exposure prophylaxis (PrEP) on slowing the global HIV epidemic hinges on effective drugs and delivery platforms. Oral drug regimens are the pillar of HIV PrEP, but variable adherence has spurred development of long-acting delivery systems with the aim of increasing PrEP access, uptake, and persistence. We have developed a long-acting subcutaneous nanofluidic implant that can be refilled transcutaneously for sustained release of the HIV drug islatravir, a nucleoside reverse transcriptase translocation inhibitor that is used for HIV PrEP. In rhesus macaques, the islatravir-eluting implants achieved constant concentrations of islatravir in plasma (median 3.14 nM) and islatravir triphosphate in peripheral blood mononuclear cells (median 0.16 picomole per 106 cells) for more than 20 months. These drug concentrations were above the established PrEP protection threshold. In two unblinded, placebo-controlled studies, islatravir-eluting implants conferred 100% protection against infection with SHIVSF162P3 after repeated low-dose rectal or vaginal challenge in male or female rhesus macaques, respectively, compared to placebo control groups. The islatravir-eluting implants were well tolerated with mild local tissue inflammation and no signs of systemic toxicity over the 20-month study period. This refillable islatravir-eluting implant has potential as a long-acting drug delivery system for HIV PrEP.
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Affiliation(s)
- Fernanda P Pons-Faudoa
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Nicola Di Trani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Simone Capuani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
- University of Chinese Academy of Science (UCAS), 19 Yuquan Road, Beijing 100049, China
| | - Jocelyn Nikita Campa-Carranza
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
- School of Medicine and Health Sciences, Tecnológico de Monterrey, Monterrey, Mexico
| | - Bharti Nehete
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Suman Sharma
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Kathryn A Shelton
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Farah Abdelmawla
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Martin Williams
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Laura Roon
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO 80045, USA
| | - David Nerguizian
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Corrine Ying Xuan Chua
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Michael M Ittmann
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Joan E Nichols
- Department of Surgery, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Jason T Kimata
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Pramod N Nehete
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
- University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | - Roberto C Arduino
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at University of Texas Health Science Center, Houston, TX 77030, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Surgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, TX 77030, USA
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24
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Anderson PL, Marzinke MA, Glidden DV. Updating the Adherence-Response for Oral Emtricitabine/Tenofovir Disoproxil Fumarate for Human Immunodeficiency Virus Pre-Exposure Prophylaxis Among Cisgender Women. Clin Infect Dis 2023; 76:1850-1853. [PMID: 36645796 PMCID: PMC10209433 DOI: 10.1093/cid/ciad021] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/03/2023] [Accepted: 01/11/2023] [Indexed: 01/17/2023] Open
Abstract
Using intraerythrocytic tenofovir-diphosphate data from the emtricitabine/tenofovir disoproxil fumarate arms of HIV Prevention Trials Network (HPTN) 083 (men) and HPTN 084 (women), approximately 99% efficacy was achieved at a lower adherence threshold in HPTN 083 (≥2 doses/week) compared with HPTN 084 (daily), suggesting higher adherence is necessary for women vs men.
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Affiliation(s)
- Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado, USA
| | - Mark A Marzinke
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - David V Glidden
- Department of Epidemiology and Biostatistics, University of California–San Francisco, San Francisco, California, USA
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25
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Beauchamp G, Donnell D, Hosek S, Anderson PL, Chan KCG, Dye BJ, Mgodi N, Bekker LG, Delany-Moretlwe S, Celum C. Trust in the provider and accurate self-reported PrEP adherence among adolescent girls and young women in South Africa and Zimbabwe: HPTN 082 study. BMC Womens Health 2023; 23:276. [PMID: 37208687 PMCID: PMC10199602 DOI: 10.1186/s12905-023-02418-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/09/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Trust is an important cornerstone of patient-provider communication. Accurate reporting of pre-exposure prophylaxis (PrEP) adherence is vital for providers to determine who needs adherence support, especially adolescent girls and young women (AGYW) disproportionately affected by newly diagnosed HIV. METHODS This is a secondary analysis of the HPTN 082 open-label PrEP demonstration trial. From 2016-2018, 451 AGYW aged 16-25 years were enrolled in South Africa (Cape Town and Johannesburg) and Zimbabwe (Harare). PrEP was initiated by 427, and 354 (83%) had month three patient-reported adherence responses and intracellular tenofovir diphosphate (TFV-DP) measurements. The patient-reported adherence response to 'In the past month, how often did you take the tablet?' was dichotomized as 'high' if the response was every day or most days, and 'low' if some days or not many days or never. The biomarker marker evidence of adherence in dried blood spots was defined as 'high' if TFV-DP ≥ 700, and 'low' if < 350 fmol/punch. We used multinomial logistic regression to examine if trust in the PrEP provider was associated with concordance between patient-reported adherence and intracellular tenofovir-diphosphate (TFV-DP). RESULTS AGYW who reported trust in their providers were almost four-fold (aOR 3.72, 95% CI 1.20-11.51) more likely to have concordant adherence (high self-reported adherence and high TFV-DP concentrations) compared to discordant non-adherence (high self-reported adherence and low TFV-DP concentrations). CONCLUSION Education and training of providers to build trusting relationships with AGYW may lead to more accurate reporting of PrEP adherence. With accurate reporting, adequate support can be provided to bolster adherence. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02732730.
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Affiliation(s)
- Geetha Beauchamp
- Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA.
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Mail Stop M2-C200, WA, 98109, Seattle, USA.
| | - Deborah Donnell
- Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Mail Stop M2-C200, WA, 98109, Seattle, USA
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, IL, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Kwun C G Chan
- Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | | | - Nyaradzo Mgodi
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Sinead Delany-Moretlwe
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Connie Celum
- Departments of Global Health, Medicine, and Epidemiology, University of Washington, Seattle, WA, USA
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26
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Salah LM, Bushman LR, Brooks KM, Anderson PL, Kiser JJ. Development and validation of an LC-MS/MS method to quantify the alcohol biomarker phosphatidylethanol 16:0/18:1 in dried blood spots for clinical research purposes. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1223:123725. [PMID: 37120963 PMCID: PMC10335920 DOI: 10.1016/j.jchromb.2023.123725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 05/02/2023]
Abstract
Phosphatidylethanol (PEth) is a group of phospholipids detectable in red blood cells exclusively following ethanol consumption. The primary PEth analog, PEth 16:0/18:1, has an extended half-life in red cells, providing a long window of detection and tremendous potential for the quantification of cumulative alcohol consumption. We developed and validated an LC/MS-MS method to quantify PEth 16:0/18:1 in dried blood spots (DBS) for clinical research purposes. Method development and validation followed FDA guidance but expanded on prior published methods through the evaluation of additional DBS-specific factors such as sample hematocrit, punch location, and spot volume. This method was applied to the quantification of PEth in participant samples.
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Affiliation(s)
- Lana M Salah
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E Montview Blvd, MS C238-V20-4410, Aurora, CO 80045, USA.
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E Montview Blvd, MS C238-V20-4410, Aurora, CO 80045, USA.
| | - Kristina M Brooks
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E Montview Blvd, MS C238-V20-4410, Aurora, CO 80045, USA.
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E Montview Blvd, MS C238-V20-4410, Aurora, CO 80045, USA.
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E Montview Blvd, MS C238-V20-4410, Aurora, CO 80045, USA.
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27
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Pons-Faudoa FP, Di Trani N, Capuani S, Hernandez N, Wood AM, Nehete B, Niles J, Shelton KA, Kezar S, Bushman LR, Chua CYX, Ittmann MM, Anderson PL, Nehete PN, Arduino RC, Nichols JE, Grattoni A. Changes in local tissue microenvironment in response to subcutaneous long-acting delivery of tenofovir alafenamide in rats and non-human primates. J Control Release 2023; 358:116-127. [PMID: 37120032 DOI: 10.1016/j.jconrel.2023.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/19/2023] [Accepted: 04/23/2023] [Indexed: 05/01/2023]
Abstract
Several implantable long-acting (LA) delivery systems have been developed for sustained subcutaneous administration of tenofovir alafenamide (TAF), a potent and effective nucleotide reverse transcriptase inhibitor used for HIV pre-exposure prophylaxis (PrEP). LA platforms aim to address the lack of adherence to oral regimens, which has impaired PrEP efficacy. Despite extensive investigations in this field, tissue response to sustained subcutaneous TAF delivery remains to be elucidated as contrasting preclinical results have been reported in the literature. To this end, here we studied the local foreign body response (FBR) to sustained subdermal delivery of three forms of TAF, namely TAF free base (TAFfb), TAF fumarate salt (TAFfs), and TAFfb with urocanic acid (TAF-UA). Sustained constant drug release was achieved via titanium-silicon carbide nanofluidic implants previously shown to be bioinert. The analysis was conducted in both Sprague-Dawley (SD) rats and rhesus macaques over 1.5 and 3 months, respectively. While visual observation did not reveal abnormal adverse tissue reaction at the implantation site, histopathology and Imaging Mass Cytometry (IMC) analyses exposed a local chronic inflammatory response to TAF. In rats, UA mitigated foreign body response to TAF in a concentration-dependent manner. This was not observed in macaques where TAFfb was better tolerated than TAFfs and TAF-UA. Notably, the level of FBR was tightly correlated with local TAF tissue concentration. Further, regardless of the degree of FBR, the fibrotic capsule (FC) surrounding the implants did not interfere with drug diffusion and systemic delivery, as evidenced by TAF PK results and fluorescence recovery after photobleaching (FRAP).
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Affiliation(s)
- Fernanda P Pons-Faudoa
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Nicola Di Trani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Simone Capuani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA; University of Chinese Academy of Science (UCAS), 19 Yuquan Road, Beijing 100049, China
| | - Nathanael Hernandez
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Anthony M Wood
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Bharti Nehete
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Jean Niles
- Department of Surgery, Houston Methodist Hospital, Houston, TX 77030, United States of America
| | - Kathryn A Shelton
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Sarah Kezar
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Lane R Bushman
- Deparment of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado- Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Corrine Ying Xuan Chua
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Michael M Ittmann
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Peter L Anderson
- Deparment of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado- Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Pramod N Nehete
- Department of Comparative Medicine, Michael E. Keeling Center for Comparative Medicine and Research, MD Anderson Cancer Center, Bastrop, TX 78602, USA; The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | - Roberto C Arduino
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at The University of Texas Health Science Center, Houston, TX 77030, USA
| | - Joan E Nichols
- Department of Surgery, Houston Methodist Hospital, Houston, TX 77030, United States of America
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA; Department of Surgery, Houston Methodist Research Institute, Houston, TX 77030, USA; Department of Radiation Oncology, Houston Methodist Research Institute, Houston, TX 77030, USA.
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28
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Marzinke MA, Fogel JM, Wang Z, Piwowar-Manning E, Kofron R, Moser A, Bhandari P, Gollings R, Bushman LR, Weng L, Halvas EK, Mellors J, Anderson PL, Persaud D, Hendrix CW, McCauley M, Rinehart AR, St Clair M, Ford SL, Rooney JF, Adeyeye A, Chariyalertsak S, Mayer K, Arduino RC, Cohen MS, Grinsztejn B, Hanscom B, Landovitz RJ, Eshleman SH. Extended Analysis of HIV Infection in Cisgender Men and Transgender Women Who Have Sex with Men Receiving Injectable Cabotegravir for HIV Prevention: HPTN 083. Antimicrob Agents Chemother 2023; 67:e0005323. [PMID: 36995219 PMCID: PMC10112247 DOI: 10.1128/aac.00053-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/15/2023] [Indexed: 03/31/2023] Open
Abstract
HPTN 083 demonstrated that injectable cabotegravir (CAB) was superior to oral tenofovir disoproxil fumarate-emtricitabine (TDF-FTC) for HIV prevention in cisgender men and transgender women who have sex with men. We previously analyzed 58 infections in the blinded phase of HPTN 083 (16 in the CAB arm and 42 in the TDF-FTC arm). This report describes 52 additional infections that occurred up to 1 year after study unblinding (18 in the CAB arm and 34 in the TDF-FTC arm). Retrospective testing included HIV testing, viral load testing, quantification of study drug concentrations, and drug resistance testing. The new CAB arm infections included 7 with CAB administration within 6 months of the first HIV-positive visit (2 with on-time injections, 3 with ≥1 delayed injection, and 2 who restarted CAB) and 11 with no recent CAB administration. Three cases had integrase strand transfer inhibitor (INSTI) resistance (2 with on-time injections and 1 who restarted CAB). Among 34 CAB infections analyzed to date, diagnosis delays and INSTI resistance were significantly more common in infections with CAB administration within 6 months of the first HIV-positive visit. This report further characterizes HIV infections in persons receiving CAB preexposure prophylaxis and helps define the impact of CAB on the detection of infection and the emergence of INSTI resistance.
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Affiliation(s)
- Mark A. Marzinke
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jessica M. Fogel
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Zhe Wang
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Estelle Piwowar-Manning
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ryan Kofron
- Department of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Amber Moser
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Pradip Bhandari
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ryann Gollings
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lane R. Bushman
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Lei Weng
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Elias K. Halvas
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John Mellors
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Deborah Persaud
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Craig W. Hendrix
- Department of Clinical Pharmacology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | | | - Marty St Clair
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | - Susan L. Ford
- GlaxoSmithKline, Research Triangle Park, North Carolina, USA
| | | | - Adeola Adeyeye
- Prevention Science Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA
| | - Suwat Chariyalertsak
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Kenneth Mayer
- The Fenway Institute, Fenway Health, Boston, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Roberto C. Arduino
- Department of Internal Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Myron S. Cohen
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Beatriz Grinsztejn
- Instituto de Pesquisa Clinica Evandro Chagas-Fiocruz, Rio de Janeiro, Brazil
| | - Brett Hanscom
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Raphael J. Landovitz
- Center for Clinical AIDS Research and Education, University of California, Los Angeles, Los Angeles, California, USA
| | - Susan H. Eshleman
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Mohammadi A, Etemad B, Zhang X, Li Y, Bedwell GJ, Sharaf R, Kittilson A, Melberg M, Wong C, Fajnzylber J, Worrall DP, Rosenthal A, Jordan H, Jilg N, Kaseke C, Giguel F, Lian X, Deo R, Gillespie E, Chishti R, Abrha S, Adams T, Siagian A, Anderson PL, Deeks SG, Lederman MM, Yawetz S, Kuritzkes DR, Lichterfeld MD, Tsibris A, Carrington M, Brumme ZL, Castillo-Mancilla JR, Engelman AN, Gaiha GD, Li JZ. Viral and Host Mediators of Non-Suppressible HIV-1 Viremia. medRxiv 2023:2023.03.30.23287124. [PMID: 37034605 PMCID: PMC10081408 DOI: 10.1101/2023.03.30.23287124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Non-suppressible HIV-1 viremia (NSV) can occur in persons with HIV despite adherence to combination antiretroviral therapy (ART) and in the absence of significant drug resistance. Here, we show that plasma NSV sequences are comprised primarily of large clones without evidence of viral evolution over time. We defined proviruses that contribute to plasma viremia as "producer", and those that did not as "non-producer". Compared to ART-suppressed individuals, NSV participants had a significantly larger producer reservoir. Producer proviruses were enriched in chromosome 19 and in proximity to the activating H3K36me3 epigenetic mark. CD4+ cells from NSV participants demonstrated upregulation of anti-apoptotic genes and downregulation of pro-apoptotic and type I/II interferon-related pathways. Furthermore, NSV participants showed no elevation in HIV-specific CD8+ cell responses and producer proviruses were enriched for HLA escape mutations. We identified critical host and viral mediators of NSV that represent potential targets to disrupt HIV persistence and promote viral silencing.
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Affiliation(s)
- Abbas Mohammadi
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Behzad Etemad
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Xin Zhang
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Yijia Li
- University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Radwa Sharaf
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Autumn Kittilson
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Meghan Melberg
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Colline Wong
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Jesse Fajnzylber
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Alex Rosenthal
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Hannah Jordan
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Nikolaus Jilg
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Clarety Kaseke
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Francoise Giguel
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiaodong Lian
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Rinki Deo
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Rida Chishti
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara Abrha
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Taylor Adams
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Abigail Siagian
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Peter L. Anderson
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Steven G. Deeks
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, CA, USA
| | - Michael M. Lederman
- Center for AIDS Research, Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Sigal Yawetz
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Mathias D. Lichterfeld
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Athe Tsibris
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Mary Carrington
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
- Basic Science Program, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD, USA and Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Zabrina L. Brumme
- Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
- British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada
| | - Jose R. Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Alan N. Engelman
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Gaurav D. Gaiha
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Jonathan Z. Li
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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Pandey S, Hu Y, Anderson PL, Kiser JJ, Cooks RG. Miniature mass spectrometer-based point-of-care assay for measuring phosphatidylethanol in blood. Analyst 2023; 148:1430-1436. [PMID: 36892479 PMCID: PMC10061498 DOI: 10.1039/d3an00098b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
We demonstrate proof-of-concept for point-of-care assessment of long-term alcohol consumption by measuring phosphatidylethanol in blood/dried blood spots with nano-electrospray ionization and MS/MS using a miniature mass spectrometer. 'Abstinence', 'moderate', and 'chronic' consumption could be distinguished rapidly for both sample types, and quantitative performance was obtained with blood (LoQ-100 ng mL-1).
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Affiliation(s)
- Sangeeta Pandey
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Yanyang Hu
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Peter L Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, CO 80045, USA.
| | - Jennifer J Kiser
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, CO 80045, USA.
| | - R Graham Cooks
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
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Beauchamp G, Hosek S, Donnell DJ, Chan KCG, Flaherty BP, Anderson PL, Dye BJ, Mgodi N, Bekker LG, Delany-Moretlwe S, Celum C. Development of a tool to assess HIV prevention readiness of adolescent girls and young women in HPTN 082 study. PLoS One 2023; 18:e0281728. [PMID: 36827440 PMCID: PMC9956790 DOI: 10.1371/journal.pone.0281728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 01/25/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND African adolescent girls and young women (AGYW) represent a large proportion of new HIV infections, a priority population for pre-exposure prophylaxis (PrEP), but adherence remains a challenge. A reliable, valid readiness tool would help identify AGYW motivated to take PrEP who need adherence support. METHODS In the HPTN 082 open-label PrEP study (2016-2019), South African and Zimbabwean women ages 16-25 were administered an HIV prevention readiness measure (HPRM). The 25 items in the HPRM included medication beliefs, connection with care, disclosure of PrEP use, social support, and housing stability using a 5-point Likert scale. Exploratory factor analysis (EFA) using polychoric correlations, scale reliability, and predictive validity were performed on data from 315 participants who responded to all items. We assessed the predictive value of HPRM scores with PrEP adherence, defined as tenofovir-diphosphate (TFV-DP) concentrations in dried blood spots, as a continuous measure and dichotomized as high PrEP adherence (≥700 fmol/punch). RESULTS EFA yielded 23 items with three subscales: self-efficacy (16 items), PrEP disclosure (4 items), and social support (3 items). Cronbach's α ranged from 0.71 to 0.92 for the overall scale and the subscales. The average overall scale and the subscales were predictive of 3-month PrEP adherence for TFV-DP concentrations: for each unit increase of the HPRM score, TFV-DP concentration increased by 103 fmol/punch (95% CI: 16, 189, p = 0.02); the highest HPRM score equated with 608 fmol/punch on average. For the self-efficacy subscale, TFV-DP increased by 90 fmol/punch (95% CI: 7, 172, p = 0.03); PrEP disclosure, 68 fmol/punch (95% CI: 19, 117 p = 0.01); and social support, 58fmol/punch (95% CI: 2, 113, p = 0.04). Higher PrEP disclosure suggests high adherence (OR 1.36, 95% CI: 1.00, 1.86, p = 0.05) and predicted persistent high adherence at both months three and six (OR: 1.50, 95% CI: 1.03, 2.21, p = 0.04). CONCLUSIONS The HPRM scale overall and the subscales individually demonstrated good internal consistency among African young women. PrEP disclosure subscale exhibiting significant association with persistent high PrEP adherence is an important finding for PrEP adherence support programs. Future work will assess replicability and expand self-efficacy and social-support subscales after item revision. TRIAL REGISTRATION ClinicalTrials.gov NCT02732730.
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Affiliation(s)
- Geetha Beauchamp
- Department of Health Systems and Population Health, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, United States of America
| | - Deborah J. Donnell
- Department of Health Systems and Population Health, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Kwun C. G. Chan
- Department of Health Systems and Population Health, University of Washington, Seattle, Washington, United States of America
- Department of Biostatistics, University of Washington, Seattle, Washington, United States of America
| | - Brian P. Flaherty
- Department of Psychology, University of Washington, Seattle, Washington, United States of America
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Bonnie J. Dye
- FHI 360, Durham, North Carolina, United States of America
| | - Nyaradzo Mgodi
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Sinead Delany-Moretlwe
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Connie Celum
- Departments of Global Health, Medicine, and Epidemiology, University of Washington, Seattle, Washington, United States of America
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32
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Morrow M, MaWhinney S, Brooks KM, Huntley R, Castillo-Mancilla JR, Anderson PL, Kiser JJ. Improving the accuracy of adherence data collected using medication monitoring technology in clinical research. Contemp Clin Trials 2023; 125:107051. [PMID: 36528338 DOI: 10.1016/j.cct.2022.107051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Ambiguous adherence data adversely effects the statistical analyses, study conclusions, and generalizability of research findings for clinical trials. Fortunately, technology-based measures of drug dosing provide more objective measures of medication adherence. While adherence data obtained through monitoring technology avoids the well documented shortcomings of self-reported adherence data, there are important limitations and nuances with use of these technologies that should be considered at study inception, conduct, and analysis. This article describes considerations for data collection and management with use of electronic adherence monitoring, specifically mobile-phone video applications or electronic pillbox devices. The overall aim of this communique is to provide research teams the ability to collect more accurate adherence data and ultimately improve the quality and outcome of their research.
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Affiliation(s)
- Mary Morrow
- Department of Biostatistics and Informatics, Colorado School of Public Health, Anschutz Medical Campus, Aurora, CO, USA
| | - Samantha MaWhinney
- Department of Biostatistics and Informatics, Colorado School of Public Health, Anschutz Medical Campus, Aurora, CO, USA
| | - Kristina M Brooks
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ryan Huntley
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jose R Castillo-Mancilla
- Division of Infectious Diseases, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
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33
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Matthews LT, Atukunda EC, Owembabazi M, Kalyebera KP, Psaros C, Chitneni P, Hendrix CW, Marzinke MA, Anderson PL, Isehunwa OO, Hurwitz KE, Bennett K, Muyindike W, Bangsberg DR, Haberer JE, Marrazzo JM, Bwana MB. High PrEP uptake and objective longitudinal adherence among HIV-exposed women with personal or partner plans for pregnancy in rural Uganda: A cohort study. PLoS Med 2023; 20:e1004088. [PMID: 36795763 PMCID: PMC9983833 DOI: 10.1371/journal.pmed.1004088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 03/03/2023] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND In Uganda, fertility rates and adult HIV prevalence are high, and many women conceive with partners living with HIV. Pre-exposure prophylaxis (PrEP) reduces HIV acquisition for women and, therefore, infants. We developed the Healthy Families-PrEP intervention to support PrEP use as part of HIV prevention during periconception and pregnancy periods. We conducted a longitudinal cohort study to evaluate oral PrEP use among women participating in the intervention. METHODS AND FINDINGS We enrolled HIV-negative women with plans for pregnancy with a partner living, or thought to be living, with HIV (2017 to 2020) to evaluate PrEP use among women participating in the Healthy Families-PrEP intervention. Quarterly study visits through 9 months included HIV and pregnancy testing and HIV prevention counseling. PrEP was provided in electronic pillboxes, providing the primary adherence measure ("high" adherence when pillbox was opened ≥80% of days). Enrollment questionnaires assessed factors associated with PrEP use. Plasma tenofovir (TFV) and intraerythrocytic TFV-diphosphate (TFV-DP) concentrations were determined quarterly for women who acquired HIV and a randomly selected subset of those who did not; concentrations TFV ≥40 ng/mL and TFV-DP ≥600 fmol/punch were categorized as "high." Women who became pregnant were initially exited from the cohort by design; from March 2019, women with incident pregnancy remained in the study with quarterly follow-up until pregnancy outcome. Primary outcomes included (1) PrEP uptake (proportion who initiated PrEP); and (2) PrEP adherence (proportion of days with pillbox openings during the first 3 months following PrEP initiation). We used univariable and multivariable-adjusted linear regression to evaluate baseline predictors selected based on our conceptual framework of mean adherence over 3 months. We also assessed mean monthly adherence over 9 months of follow-up and during pregnancy. We enrolled 131 women with mean age 28.7 years (95% CI: 27.8 to 29.5). Ninety-seven (74%) reported a partner with HIV and 79 (60%) reported condomless sex. Most women (N = 118; 90%) initiated PrEP. Mean electronic adherence during the 3 months following initiation was 87% (95% CI: 83%, 90%). No covariates were associated with 3-month pill-taking behavior. Concentrations of plasma TFV and TFV-DP were high among 66% and 47%, 56% and 41%, and 45% and 45% at months 3, 6, and 9, respectively. We observed 53 pregnancies among 131 women (1-year cumulative incidence 53% [95% CI: 43%, 62%]) and 1 HIV-seroconversion in a non-pregnant woman. Mean pillcap adherence for PrEP users with pregnancy follow-up (N = 17) was 98% (95% CI: 97%, 99%). Study design limitations include lack of a control group. CONCLUSIONS Women in Uganda with PrEP indications and planning for pregnancy chose to use PrEP. By electronic pillcap, most were able to sustain high adherence to daily oral PrEP prior to and during pregnancy. Differences in adherence measures highlight challenges with adherence assessment; serial measures of TFV-DP in whole blood suggest 41% to 47% of women took sufficient periconception PrEP to prevent HIV. These data suggest that women planning for and with pregnancy should be prioritized for PrEP implementation, particularly in settings with high fertility rates and generalized HIV epidemics. Future iterations of this work should compare the outcomes to current standard of care. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03832530 https://clinicaltrials.gov/ct2/show/NCT03832530?term=lynn+matthews&cond=hiv&cntry=UG&draw=2&rank=1.
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Affiliation(s)
- Lynn T. Matthews
- Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
| | | | | | - Kato Paul Kalyebera
- Mbarara University of Science and Technology, Mbarara, Uganda
- Mbarara Regional Referral Hospital, Mbarara, Uganda
| | - Christina Psaros
- Behavioral Medicine Program, Department of Psychiatry, Massachusetts General Hospital, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Pooja Chitneni
- Harvard Medical School, Boston, Massachusetts, United States of America
- Division of Infectious Diseases and General Internal Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | - Craig W. Hendrix
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Mark A. Marzinke
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, United States of America
| | - Oluwaseyi O. Isehunwa
- Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Kathleen E. Hurwitz
- NoviSci, Inc., a Target RWE company, Durham, North Carolina, United States of America
| | - Kara Bennett
- Bennett Statistical Consulting Inc., Ballston Lake, New York, United States of America
| | - Winnie Muyindike
- Mbarara University of Science and Technology, Mbarara, Uganda
- Mbarara Regional Referral Hospital, Mbarara, Uganda
| | - David R. Bangsberg
- School of Public Health, Oregon Health Sciences University–Portland State University, Portland, Oregon, United States of America
| | - Jessica E. Haberer
- Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Global Health, Massachusetts General Hospital, Boston, Boston, Massachusetts, United States of America
| | - Jeanne M. Marrazzo
- Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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Buchbinder SP, Siegler AJ, Coleman K, Vittinghoff E, Wilde G, Lockard A, Scott H, Anderson PL, Laborde N, van der Straten A, Christie RH, Marlborough M, Liu AY. Randomized Controlled Trial of Automated Directly Observed Therapy for Measurement and Support of PrEP Adherence Among Young Men Who have Sex with Men. AIDS Behav 2023; 27:719-732. [PMID: 35984607 PMCID: PMC9908647 DOI: 10.1007/s10461-022-03805-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2022] [Indexed: 11/26/2022]
Abstract
Measurement of adherence to oral pre-exposure prophylaxis (PrEP) in real-time has been challenging. We developed DOT Diary, a smartphone application that combines automated directly observed therapy with a PrEP adherence visualization toolkit, and tested its ability to measure PrEP adherence and to increase adherence among a diverse cohort of young men who have sex with men (MSM). We enrolled 100 MSM in San Francisco and Atlanta and randomly assigned them 2:1 to DOT Diary versus standard of care. Concordance between DOT Diary measurement and drug levels in dried blood spots was substantial, with 91.0% and 85.3% concordance between DOT Diary and emtricitabine-triphosphate and tenofovir-diphosphate, respectively. There was no significant difference in the proportion of participants with detectable PrEP drug levels at 24 weeks between study arms. These results suggest DOT Diary is substantially better than self-reported measures of adherence, but additional interventions are needed to improve PrEP adherence over time.
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Affiliation(s)
- Susan P Buchbinder
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA.
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA.
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA.
- Bridge HIV, San Francisco Department of Public Health, 25 Van Ness Avenue, Suite 100, San Francisco, CA, 94102, USA.
| | - Aaron J Siegler
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | - Kenneth Coleman
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Gretchen Wilde
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | - Annie Lockard
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | - Hyman Scott
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | | | | | - Ariane van der Straten
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- ASTRA Consulting, Kensington, CA, USA
| | | | | | - Albert Y Liu
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
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35
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Thurman AR, Ouattara LA, Yousefieh N, Anderson PL, Bushman LR, Fang X, Hanif H, Clark M, Singh O, Doncel GF. A phase I study to assess safety, pharmacokinetics, and pharmacodynamics of a vaginal insert containing tenofovir alafenamide and elvitegravir. Front Cell Infect Microbiol 2023; 13:1130101. [PMID: 37153145 PMCID: PMC10154607 DOI: 10.3389/fcimb.2023.1130101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/31/2023] [Indexed: 05/09/2023] Open
Abstract
Background New multi-purpose prevention technology (MPT) products are needed to prevent human immunodeficiency virus (HIV) and herpes simplex virus type 2 (HSV2). In this study, we evaluated a fast-dissolve insert that may be used vaginally or rectally for prevention of infection. Objective To describe the safety, acceptability, multi-compartment pharmacokinetics (PK), and in vitro modeled pharmacodynamics (PD) after a single vaginal dose of an insert containing tenofovir alafenamide (TAF) and elvitegravir (EVG) in healthy women. Methods This was a Phase I, open-label, study. Women (n=16) applied one TAF (20mg)/EVG (16mg) vaginal insert and were randomized (1:1) to sample collection time groups for up to 7 days post dosing. Safety was assessed by treatment-emergent adverse events (TEAEs). EVG, TAF and tenofovir (TFV) concentrations were measured in plasma, vaginal fluid and tissue, and TFV-diphosphate (TFV-DP) concentration in vaginal tissue. PD was modeled in vitro by quantifying the change in inhibitory activity of vaginal fluid and vaginal tissue against HIV and HSV2 from baseline to after treatment. Acceptability data was collected by a quantitative survey at baseline and post treatment. Results The TAF/EVG insert was safe, with all TEAEs graded as mild, and acceptable to participants. Systemic plasma exposure was low, consistent with topical delivery, while high mucosal levels were detected, with median TFV vaginal fluid concentrations exceeding 200,000 ng/mL and 1,000 ng/mL for up to 24 hours and 7 days post dosing, respectively. All participants had vaginal tissue EVG concentrations of > 1 ng/mg at 4 and 24 hours post dosing. The majority had tissue TFV-DP concentrations exceeding 1000 fmol/mg by 24 - 72 hours post dosing. Vaginal fluid inhibition of HIV-1 and HSV-2 in vitro significantly increased from baseline and was similarly high at 4 and 24 hours post dosing. Consistent with high tissue TFV-DP concentrations, p24 HIV antigen production from ectocervical tissues infected ex vivo with HIV-1 significantly decreased from baseline at 4 hours post dosing. HSV-2 production from tissue also decreased post treatment. Conclusions A single dose of TAF/EVG inserts met PK benchmarks, with PK data supporting an extended window of high mucosal protection. PD modeling supports mucosal protection against both HIV-1 and HSV-2. The inserts were safe and highly acceptable. Clinical trial registration ClinicalTrials.gov, identifier NCT03762772.
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Affiliation(s)
- Andrea R. Thurman
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
- *Correspondence: Andrea R. Thurman,
| | - Louise A. Ouattara
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
| | - Nazita Yousefieh
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
| | - Peter L. Anderson
- University of Colorado, Colorado Antiviral Pharmacology Lab, School of Pharmacy, Anschutz Medical Campus, Aurora, CO, United States
| | - Lane R. Bushman
- University of Colorado, Colorado Antiviral Pharmacology Lab, School of Pharmacy, Anschutz Medical Campus, Aurora, CO, United States
| | - Xi Fang
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
| | - Homaira Hanif
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
| | - Meredith Clark
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
| | - Onkar Singh
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
| | - Gustavo F. Doncel
- CONRAD, Eastern Virginia Medical School, Norfolk and Arlington, VA, United States
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Grinsteiner E, Morrow M, Mawhinney S, Coyle RP, Coleman SS, Zheng JH, Ellison L, Bushman LR, Kiser JJ, Anderson PL, Castillo-Mancilla JR. Demographic and Clinical Characteristics of Persons with HIV with Viral Load:Adherence Mismatch Who Are at Risk of Future Viremia. AIDS Res Hum Retroviruses 2023; 39:33-37. [PMID: 36301917 PMCID: PMC9889007 DOI: 10.1089/aid.2021.0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The potency of modern antiretroviral therapy (ART) allows for greater forgiveness to missed doses while still achieving, and maintaining, viral suppression. However, imperfect ART adherence, even if sufficient to maintain viral suppression, has been associated with adverse clinical outcomes. ART adherence can be objectively quantified using tenofovir diphosphate (TFV-DP) in dried blood spots (DBS), a biomarker of cumulative adherence that is predictive of future viremia-even among persons with HIV (PWH) with an undetectable HIV viral load (VL). Within a prospective cohort of PWH on tenofovir disoproxil fumarate-including ART, mismatch between drug concentration and HIV VL (i.e., low concentrations of TFV-DP in DBS in the setting of viral suppression with subsequent viremia at the following visit) was observed more frequently in PWH who were Black (36% vs. 15%; p = .04), had body mass index >30 kg/m2 (40% vs. 13%; p = .01), and reported <100% 3 months (68% vs. 50%; p = .005) and 30 days (56% vs. 31%; p = .001) adherence, compared with PWH without mismatch. Identifying PWH at risk for future viremia could help clinicians implement targeted timely interventions before episodes of breakthrough viremia.
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Affiliation(s)
| | - Mary Morrow
- Department of Biostatistics and Bioinformatics, Colorado School of Public Health, Aurora, Colorado, USA
| | - Samantha Mawhinney
- Department of Biostatistics and Bioinformatics, Colorado School of Public Health, Aurora, Colorado, USA
| | - Ryan P. Coyle
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | | | - Jia-Hua Zheng
- Colorado Antiviral Pharmacology Laboratory, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lucas Ellison
- Colorado Antiviral Pharmacology Laboratory, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lane R. Bushman
- Colorado Antiviral Pharmacology Laboratory, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jennifer J. Kiser
- Colorado Antiviral Pharmacology Laboratory, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Peter L. Anderson
- Colorado Antiviral Pharmacology Laboratory, Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jose R. Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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Yager J, Brooks KM, Brothers J, Mulligan K, Landovitz RJ, Reirden D, Malhotra M, Glenny C, Harding P, Powell T, Anderson PL, Hosek S. Gender-Affirming Hormone Pharmacokinetics Among Adolescent and Young Adult Transgender Persons Receiving Daily Emtricitabine/Tenofovir Disoproxil Fumarate. AIDS Res Hum Retroviruses 2022; 38:939-943. [PMID: 35815468 PMCID: PMC9910105 DOI: 10.1089/aid.2022.0044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Transgender persons have an increased vulnerability to HIV infection yet have not been well-represented in past clinical trials for pre-exposure prophylaxis (PrEP). Because of this, there are few data available to understand whether gender-affirming hormone concentrations are influenced by PrEP agents in transgender men (TM) and transgender women (TW). The objective of this study was to compare gender-affirming hormone concentrations with versus without emtricitabine (F, FTC)-tenofovir disoproxil fumarate (TDF). TM and TW without HIV, aged 15-24 years, were enrolled for 1 month of directly observed daily F/TDF. Participants were required to be receiving a stable hormone dose (estradiol or testosterone) for at least 1 month or three consecutive doses, whichever was longer, before enrollment and willing to continue the same dose. Intensive pharmacokinetic (PK) sampling for gender-affirming hormones was collected before and 2-3 weeks after daily F/TDF. Serum estradiol and total testosterone were determined by liquid chromatography-tandem mass spectrometry; free testosterone by equilibrium dialysis. Maximum concentrations (Cmax) and area under the curve (AUClast) were log-transformed and compared between baseline and on F/TDF using geometric mean ratios (GMRs) with 95% confidence intervals (CIs). Twenty-five TW and 24 TM were enrolled (median age: 20 and 21 years, respectively). In TW, estradiol Cmax (GMR [95% CI]: 0.85 [0.65-1.11]) and AUClast (GMR [95% CI]: 0.87 [0.73-1.03]) were comparable on F/TDF versus baseline. In TM, similar comparability was observed for PrEP versus baseline including total testosterone Cmax (GMR [95% CI]: 0.91 [0.80-1.03]) and AUClast (GMR [95% CI]: 0.91 [0.81-1.04]) and free testosterone Cmax (GMR [95% CI]: 0.89 [0.74-1.07]) and AUClast (GMR [95% CI]: 0.88 [0.74-1.03]). Estradiol and testosterone exposures in young TW and TM did not significantly differ on F/TDF versus baseline. These findings should reassure patients and providers that F/TDF can be used as PrEP without concern for altering gender-affirming hormone PK. ClinicalTrials.gov (NCT03652623).
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Affiliation(s)
- Jenna Yager
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Kristina M. Brooks
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Jennifer Brothers
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, USA
| | - Kathleen Mulligan
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Francisco, San Francisco, California, USA
| | - Raphael J. Landovitz
- Department of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Daniel Reirden
- Department of Adolescent Medicine, Children's Hospital of Colorado, Aurora, Colorado, USA
| | - Meenakshi Malhotra
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, USA
| | - Carrie Glenny
- Department of Adolescent Medicine, Children's Hospital of Colorado, Aurora, Colorado, USA
| | - Paul Harding
- Department of Pediatric Infectious Diseases, University of Colorado–Anschutz Medical Campus, Aurora, Colorado, USA
| | - Tina Powell
- Department of Pediatric Infectious Diseases, University of Colorado–Anschutz Medical Campus, Aurora, Colorado, USA
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, USA
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Brothers J, Hosek S, Keckler K, Anderson PL, Xiong D, Liu H, Huhn G. The ATEAM study: Advances in technology to enhance PrEP adherence monitoring (ATEAM) among young men who have sex with men. Clin Transl Sci 2022; 15:2947-2957. [PMID: 36106611 PMCID: PMC9747125 DOI: 10.1111/cts.13414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 07/14/2022] [Accepted: 08/17/2022] [Indexed: 01/26/2023] Open
Abstract
Young age has consistently correlated with lower adherence to pre-exposure prophylaxis (PrEP) in young men who have sex with men (YMSM). Digital medicine, a dynamic healthcare platform of wearable physiological sensors and mobile communication technology that can respond to medication nonadherence rapidly, has the potential in promoting PrEP adherence. We evaluated the feasibility and acceptability of Proteus Discover, a digital monitoring adherence system, to measure PrEP adherence and provide real-time feedback among cisgender YMSM and transgender women. One hundred HIV-negative young men and transgender women ages 16-24 years were enrolled in a 24-week randomized controlled crossover study to tenofovir disoproxil fumarate with emtricitabine (TDF/FTC) coencapsulated with Proteus Discover versus TDF/FTC standard-of-care. Participants in the 12-week Proteus Discover arm received weekly SMS text messages to promote pill taking based on Proteus Discover adherence data. Dried blood spots (DBS) were collected at 4-week intervals for tenofovir diphosphate (TFV-DP) in red blood cells as the referent and questionnaires were completed to assess acceptability, usability, and patterns of use. Linear mixed models analyzed the relationship between 30-day adherence measured by DBS and Proteus Discover. PrEP adherence was high overall. Adherence, as measured by DBS, was correlated with adherence as measured by Proteus Discover (p value = 0.03). Most participants reported that Proteus Discover helped them take their PrEP daily and that the system was easy to use. However, a majority (53.5%-60.5%) disagreed with the statement that wearing the patch was not an issue. There was an incremental increase in TFV-DP in DBS with adherence by Proteus Discover. More research is warranted to explore optimizing PrEP adherence for youth through real-time monitoring.
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Affiliation(s)
- Jennifer Brothers
- Hektoen Institute of MedicineChicagoIllinoisUSA,Cook County Department of Public HealthChicagoIllinoisUSA
| | - Sybil Hosek
- Stroger Hospital of Cook CountyChicagoIllinoisUSA
| | | | - Peter L. Anderson
- University of Colorado Skaggs School of Pharmacy and Pharmaceutical SciencesAuroraColoradoUSA
| | - Di Xiong
- Division of Oral and Systemic Health Sciences, School of DentistryUniversity of CaliforniaLos AngelesCaliforniaUSA,Departments of Biostatistics, Fielding School of Public HealthUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Honghu Liu
- Division of Oral and Systemic Health Sciences, School of DentistryUniversity of CaliforniaLos AngelesCaliforniaUSA,Departments of Biostatistics, Fielding School of Public HealthUniversity of CaliforniaLos AngelesCaliforniaUSA,Department of Health Policy and Management, Fielding School of Public HealthUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Gregory Huhn
- Stroger Hospital of Cook CountyChicagoIllinoisUSA,Ruth M. Rothstein CORE CenterChicagoIllinoisUSA
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Yager J, Brooks KM, Brothers J, Mulligan K, Landovitz R, Reirden D, Glenny C, Malhotra M, Anderson PL, Hosek S. Pharmacokinetics of Emtricitabine/Tenofovir Disoproxil Fumarate Among Transgender Adolescents and Young Adults Without HIV Receiving Gender Affirming Hormones. AIDS Res Hum Retroviruses 2022; 38:840-846. [PMID: 35943868 PMCID: PMC9910104 DOI: 10.1089/aid.2022.0043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The transgender community has expressed concerns regarding drug-drug interactions between HIV-pre-exposure prophylaxis (PrEP) and gender-affirming hormones. In this study, we evaluated emtricitabine (F, FTC)/tenofovir (TFV) disoporoxil fumarate (TDF) pharmacokinetics (PK) among adolescent and young adult transgender persons receiving gender-affirming hormone therapy (GAHT). This was a prospective, observational study among transgender women (TW) and men (TM) without HIV, 15-24 years of age, receiving GAHT (estradiol with/without spironolactone, or testosterone). Participants received 1 month of directly observed daily F/TDF. Weekly convenience blood samples were collected for plasma TFV and FTC, and intracellular TFV-diphosphate (TFV-DP) and FTC-triphosphate (FTC-TP) in peripheral blood mononuclear cells (PBMC) and dried blood spots (DBS). After 2-3 weeks of F/TDF dosing, intensive PK sampling was conducted. PK parameters were estimated using noncompartmental methods. Data were log-transformed and compared between TM and TW, and to historical data among cisgender adults. Plasma TFV exposures were similar between TM and TW [geometric mean ratio (GMR); confidence interval (95% CI): 1.06 (0.89-1.28)], whereas FTC plasma exposures were 21% higher in TM versus TW (95% CI: 1.07-1.38). TFV-DP in PBMC and DBS and FTC-TP in DBS did not differ between TM versus TW after controlling for creatinine clearance (CrCl), but FTC-TP in PBMC remained 46% (95% CI: 1.15-1.86) higher in TM versus TW. All PK exposures were within expected ranges based on historical studies. TM had higher FTC exposures compared with TW, but overall plasma and intracellular exposures for both drugs were within the range of historical studies, suggesting high PrEP efficacy will be retained in adolescent and young adult transgender persons. Registered at ClinicalTrials.gov (NCT03652623).
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Affiliation(s)
- Jenna Yager
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Kristina M. Brooks
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Jennifer Brothers
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, USA
| | - Kathleen Mulligan
- Department of Medicine, Division of Endocrinology and Metabolism, University of California, San Francisco, San Francisco, California, USA
| | - Raphael Landovitz
- Department of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Daniel Reirden
- Department of Adolescent Medicine, Children's Hospital of Colorado, Aurora, Colorado, USA
| | - Carrie Glenny
- Department of Adolescent Medicine, Children's Hospital of Colorado, Aurora, Colorado, USA
| | - Meena Malhotra
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, USA
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, USA
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Castillo-Mancilla JR, Anderson PL. Long-acting injectable Cabotegravir: How drug concentrations could help guide patient management. Br J Clin Pharmacol 2022; 88:4384-4386. [PMID: 35971819 DOI: 10.1111/bcp.15410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/26/2022] [Accepted: 05/06/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Jose R Castillo-Mancilla
- Division of Infectious Diseases, School of Medicine, University of Colorado-AMC, Aurora, CO, USA
| | - Peter L Anderson
- Colorado Antiviral Pharmacology Laboratory and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, USA
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Velloza J, Donnell D, Hosek S, Anderson PL, Chirenje ZM, Mgodi N, Bekker LG, Marzinke MA, Delany-Moretlwe S, Celum C. Alignment of PrEP adherence with periods of HIV risk among adolescent girls and young women in South Africa and Zimbabwe: a secondary analysis of the HPTN 082 randomised controlled trial. Lancet HIV 2022; 9:e680-e689. [PMID: 36087612 PMCID: PMC9530001 DOI: 10.1016/s2352-3018(22)00195-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Adolescent girls and young women in southern and eastern Africa have adherence challenges with daily oral HIV pre-exposure prophylaxis (PrEP). High adherence is most important during periods of HIV risk (prevention-effective adherence). We aimed to describe HIV risk behaviour and to understand patterns in PrEP adherence during periods of risk among adolescent girls and young women from sub-Saharan Africa. METHODS We did a secondary analysis of the HPTN 082 trial, an open-label, interventional, randomised controlled trial of sexually active adolescent girls and young women (aged 16-25 years) testing negative for HIV in Johannesburg and Cape Town, South Africa, and in Harare, Zimbabwe. The primary outcomes were high cumulative PrEP adherence, dichotomised as intracellular tenofovir diphosphate concentrations of at least 700 fmol/punch in dried blood spots at weeks 13, 26, and 52, and high recent PrEP adherence, dichotomised as plasma tenofovir concentrations of at least 40 ng/mL at weeks 13, 26, and 52, among participants who accepted PrEP. We collected data on sexual behaviour every 3 months. We categorised visits into a binary variable of any HIV risk based on condomless sex, more than one sexual partner, primary partner's HIV status and antiretroviral use, transactional sex, drug or alcohol use around sexual activity, and laboratory-diagnosed STIs. We used generalised estimating equations to evaluate associations between HIV risk (reflecting behaviour during the previous 3 months) and high cumulative and recent adherence to PrEP and any PrEP use (quantifiable drug concentrations). The trial is registered with ClinicalTrials.gov, NCT02732730. FINDINGS Between Oct 12, 2016, and Oct 25, 2018, 451 women were recruited, and 427 participants (median age 21·0 years [IQR 19·0-22·0]) were eligible for inclusion in this analysis. The proportion of participants reporting at least one HIV risk factor decreased significantly over follow-up, from 364 (85%) participants at enrolment, 226 (60%) at week 13, and 243 (65%) at week 26, to 224 (61%) at week 52 (p<0·0001). Any HIV risk was significantly associated with high PrEP adherence, measured by both tenofovir diphosphate concentrations of at least 700 fmol/punch (adjusted relative risk 1·57 [95% CI 1·09-2·25]; p=0·014) and plasma tenofovir concentrations of at least 40 ng/mL (1·36 [1·11-1·65]; p=0·0025). Any HIV risk was also associated with quantifiable concentrations of tenofovir diphosphate (1·15 [1·03-1·29]; p=0·013) and tenofovir (1·27 [1·09-1·49]; p=0·0022). We observed significant dose-response relationships between number of HIV risk factors and PrEP drug concentrations. INTERPRETATION The association between any HIV risk and high PrEP adherence suggests that adolescent girls and young women were able to use PrEP during periods of risk, an indicator of prevention-effective PrEP adherence. Our findings support a shift in the PrEP framework to acknowledge prevention-effective adherence practices, which might improve PrEP delivery and adherence support for adolescent girls and young women in HIV-endemic settings. FUNDING US National Institutes of Health.
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Affiliation(s)
- Jennifer Velloza
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA; Department of Global Health, University of Washington, Seattle, WA, USA.
| | - Deborah Donnell
- Department of Global Health, University of Washington, Seattle, WA, USA; Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Sybil Hosek
- Department of Psychiatry and Department of Infectious Diseases, Stroger Hospital of Cook County, Chicago, IL, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Z Mike Chirenje
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Nyaradzo Mgodi
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Mark A Marzinke
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sinead Delany-Moretlwe
- Wits Reproductive Health and HIV Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Connie Celum
- Department of Global Health, University of Washington, Seattle, WA, USA; Department of Medicine, University of Washington, Seattle, WA, USA; Department of Epidemiology, University of Washington, Seattle, WA, USA
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Celum CL, Bukusi EA, Bekker LG, Delany-Moretlwe S, Kidoguchi L, Omollo V, Rousseau E, Travill D, Morton JF, Mogaka F, O'Malley G, Barnabee G, van der Straten A, Donnell D, Parikh UM, Kudrick L, Anderson PL, Haberer JE, Wu L, Heffron R, Johnson R, Morrison S, Baeten JM. PrEP use and HIV seroconversion rates in adolescent girls and young women from Kenya and South Africa: the POWER demonstration project. J Int AIDS Soc 2022; 25:e25962. [PMID: 35822945 PMCID: PMC9278271 DOI: 10.1002/jia2.25962] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 06/23/2022] [Indexed: 01/30/2023] Open
Abstract
INTRODUCTION HIV incidence remains high among African adolescent girls and young women (AGYW). The primary objective of this study is to assess pre-exposure prophylaxis (PrEP) initiation, use, persistence and HIV acquisition among African AGYW offered PrEP in order to inform PrEP scale-up. METHODS POWER was a prospective implementation science evaluation of PrEP delivery for sexually active HIV-negative AGYW ages 16-25 in family planning clinics in Kisumu, Kenya and youth and primary healthcare clinics in Cape Town and Johannesburg, South Africa. Follow-up visits occurred at month 1 and quarterly for up to 36 months. PrEP users were defined based on the month 1 refill. PrEP persistence through month 6 was assessed using Kaplan-Meier survival analysis among AGYW with a month 1 visit, defining non-persistence as an ≥15 day gap in PrEP availability for daily dosing. PrEP execution was evaluated in a subset with PrEP supply from the prior visit sufficient for daily dosing by measuring blood tenofovir diphosphate (TFV-DP) levels. RESULTS From June 2017 to September 2020, 2550 AGYW were enrolled (1000 in Kisumu, 787 in Cape Town and 763 in Johannesburg). Median age was 21 years, 66% had a sexual partner of unknown HIV status, and 29% had chlamydia and 10% gonorrhoea. Overall, 2397 (94%) initiated PrEP and 749 (31%) had a refill at 1 month. Of AGYW who could reach 6 months of post-PrEP initiation follow-up, 128/646 (20%) persisted with PrEP for 6 months and an additional 92/646 (14%) had a gap and restarted PrEP. TFV-DP levels indicated that 47% (91/193) took an average of ≥4 doses/week. Sixteen HIV seroconversions were observed (incidence 2.2 per 100 person-years, 95% CI 1.2, 3.5); 13 (81%) seroconverters either did not have PrEP dispensed in the study interval prior to seroconversion or TFV-DP levels indicated <4 doses/week in the prior 6 weeks. CONCLUSIONS In this study of PrEP integration with primary care and reproductive health services for African AGYW, demand for PrEP was high. Although PrEP use decreased in the first months, an important fraction used PrEP through 6 months. Strategies are needed to simplify PrEP delivery, support adherence and offer long-acting PrEP options to improve persistence and HIV protection.
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Affiliation(s)
- Connie L Celum
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA.,Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - Elizabeth A Bukusi
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, USA.,Center for Microbiology Research, Kenya Medical Research Institute, Kisumu, Kenya
| | | | | | - Lara Kidoguchi
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Victor Omollo
- Center for Microbiology Research, Kenya Medical Research Institute, Kisumu, Kenya
| | | | - Danielle Travill
- Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
| | - Jennifer F Morton
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Felix Mogaka
- Center for Microbiology Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Gabrielle O'Malley
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Gena Barnabee
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Ariane van der Straten
- Center for AIDS Prevention Studies, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Deborah Donnell
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Urvi M Parikh
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - Peter L Anderson
- University of Colorado-Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jessica E Haberer
- Center for Global Health, Massachusetts General Hospital, Boston, Massachusetts, USA.,Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Linxuan Wu
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - Renee Heffron
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - Rachel Johnson
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Susan Morrison
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Jared M Baeten
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA.,Department of Epidemiology, University of Washington, Seattle, Washington, USA.,Gilead Sciences, Foster City, California, USA
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Eshleman SH, Fogel JM, Piwowar-Manning E, Chau G, Cummings V, Agyei Y, Richardson P, Sullivan P, Haines CD, Bushman LR, Petropoulos C, Persaud D, Kofron R, Hendrix CW, Anderson PL, Farrior J, Mellors J, Adeyeye A, Rinehart A, St Clair M, Ford S, Rooney JF, Mathew CA, Hunidzarira P, Spooner E, Mpendo J, Nair G, Cohen MS, Hughes JP, Hosseinipour M, Hanscom B, Delany-Moretlwe S, Marzinke MA. Characterization of Human Immunodeficiency Virus (HIV) Infections in Women Who Received Injectable Cabotegravir or Tenofovir Disoproxil Fumarate/Emtricitabine for HIV Prevention: HPTN 084. J Infect Dis 2022; 225:1741-1749. [PMID: 35301540 PMCID: PMC9113509 DOI: 10.1093/infdis/jiab576] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/20/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND HIV Prevention Trials Network 084 demonstrated that long-acting injectable cabotegravir (CAB) was superior to daily oral tenofovir (TFV) disoproxil fumarate (TDF)/emtricitabine (FTC) for preventing human immunodeficiency virus (HIV) infection in sub-Saharan African women. This report describes HIV infections that occurred in the trial before unblinding. METHODS Testing was performed using HIV diagnostic assays, viral load testing, a single-copy RNA assay, and HIV genotyping. Plasma CAB, plasma TFV, and intraerythrocytic TFV-diphosphate concentrations were determined by liquid chromatography-tandem mass spectrometry. RESULTS Forty HIV infections were identified (CAB arm, 1 baseline infection, 3 incident infections; TDF/FTC arm, 36 incident infections). The incident infections in the CAB arm included 2 with no recent drug exposure and no CAB injections and 1 with delayed injections; in 35 of 36 cases in the TDF/FTC arm, drug concentrations indicated low or no adherence. None of the cases had CAB resistance. Nine women in the TDF/FTC arm had nonnucleoside reverse-transcriptase inhibitor resistance; 1 had the nucleoside reverse-transcriptase inhibitor resistance mutation, M184V. CONCLUSIONS Almost all incident HIV infections occurred in the setting of unquantifiable or low drug concentrations. CAB resistance was not detected. Transmitted nonnucleoside reverse-transcriptase inhibitor resistance was common; 1 woman may have acquired nucleoside reverse-transcriptase inhibitor resistance from study drug exposure.
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Affiliation(s)
- Susan H Eshleman
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jessica M Fogel
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Estelle Piwowar-Manning
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Gordon Chau
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Vanessa Cummings
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yaw Agyei
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Paul Richardson
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Philip Sullivan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Casey D Haines
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | | | - Deborah Persaud
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ryan Kofron
- Department of Medicine, University of California at Los Angeles, Los Angeles, California, USA
| | - Craig W Hendrix
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | | | - John Mellors
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Adeola Adeyeye
- Prevention Science Program, Division of Acquired Immunodeficiency Syndrome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA
| | - Alex Rinehart
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | - Marty St Clair
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | - Susan Ford
- GlaxoSmithKline, Research Triangle Park, North Carolina, USA
| | | | | | - Portia Hunidzarira
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Elizabeth Spooner
- HIV Prevention Research Unit, South African Medical Research Council, Durban, South Africa
| | | | - Gonasagrie Nair
- Center for Medical Ethics and Law, Stellenbosch University, Stellenbosch, South Africa
| | - Myron S Cohen
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - James P Hughes
- Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Mina Hosseinipour
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Brett Hanscom
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Mark A Marzinke
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Delany-Moretlwe S, Hughes JP, Bock P, Ouma SG, Hunidzarira P, Kalonji D, Kayange N, Makhema J, Mandima P, Mathew C, Spooner E, Mpendo J, Mukwekwerere P, Mgodi N, Ntege PN, Nair G, Nakabiito C, Nuwagaba-Biribonwoha H, Panchia R, Singh N, Siziba B, Farrior J, Rose S, Anderson PL, Eshleman SH, Marzinke MA, Hendrix CW, Beigel-Orme S, Hosek S, Tolley E, Sista N, Adeyeye A, Rooney JF, Rinehart A, Spreen WR, Smith K, Hanscom B, Cohen MS, Hosseinipour MC. Cabotegravir for the prevention of HIV-1 in women: results from HPTN 084, a phase 3, randomised clinical trial. Lancet 2022; 399:1779-1789. [PMID: 35378077 PMCID: PMC9077443 DOI: 10.1016/s0140-6736(22)00538-4] [Citation(s) in RCA: 154] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Oral pre-exposure prophylaxis has been introduced in more than 70 countries, including many in sub-Saharan Africa, but women experience considerable barriers to daily pill-taking, such as stigma, judgement, and the fear of violence. Safe and effective long-acting agents for HIV prevention are needed for women. We aimed to evaluate the safety and efficacy of injectable cabotegravir compared with daily oral tenofovir diphosphate plus emtricitabine (TDF-FTC) for HIV prevention in HIV-uninfected women. METHODS HPTN 084 was a phase 3, randomised, double-blind, double-dummy, active-controlled, superiority trial in 20 clinical research sites in seven countries in sub-Saharan Africa. Participants were eligible for enrolment if they were assigned female sex at birth, were aged 18-45 years, reported at least two episodes of vaginal intercourse in the previous 30 days, were at risk of HIV infection based on an HIV risk score, and agreed to use a long-acting reversible contraceptive method. Participants were randomly assigned (1:1) to either active cabotegravir with TDF-FTC placebo (cabotegravir group) or active TDF-FTC with cabotegravir placebo (TDF-FTC group). Study staff and participants were masked to study group allocation, with the exception of the site pharmacist who was responsible for study product preparation. Participants were prescribed 5 weeks of daily oral product followed by intramuscular injections every 8 weeks after an initial 4-week interval load, alongside daily oral pills. Participants who discontinued injections were offered open-label daily TDF-FTC for 48 weeks. The primary endpoints of the study were incident HIV infection in the intention-to-treat population, and clinical and laboratory events that were grade 2 or higher in all women who had received at least one dose of study product. This study is registered with ClinicalTrials.gov, NCT03164564. FINDINGS From Nov 27, 2017, to Nov 4, 2020, we enrolled 3224 participants (1614 in the cabotegravir group and 1610 in the TDF-FTC group). Median age was 25 years (IQR 22-30); 1755 (54·7%) of 3209 had two or more partners in the preceding month. 40 incident infections were observed over 3898 person-years (HIV incidence 1·0% [95% CI 0·73-1·40]); four in the cabotegravir group (HIV incidence 0·2 cases per 100 person-years [0·06-0·52]) and 36 in the TDF-FTC group (1·85 cases per 100 person-years [1·3-2·57]; hazard ratio 0·12 [0·05-0·31]; p<0·0001; risk difference -1·6% [-1·0% to -2·3%]. In a random subset of 405 TDF-FTC participants, 812 (42·1%) of 1929 plasma samples had tenofovir concentrations consistent with daily use. Injection coverage was 93% of the total number of person-years. Adverse event rates were similar across both groups, apart from injection site reactions, which were more frequent in the cabotegravir group than in the TDF-FTC group (577 [38·0%] of 1519 vs 162 [10·7%] of 1516]) but did not result in injection discontinuation. Confirmed pregnancy incidence was 1·3 per 100 person-years (0·9-1·7); no congenital birth anomalies were reported. INTERPRETATION Although both products for HIV prevention were generally safe, well tolerated, and effective, cabotegravir was superior to TDF-FTC in preventing HIV infection in women. FUNDING National Institute of Allergy and Infectious Diseases, ViiV Healthcare, and the Bill & Melinda Gates Foundation. Additional support was provided through the National Institute of Mental Health, the National Institute on Drug Abuse, and the Eunice Kennedy Shriver National Institute of Child Health and Human Development. ViiV Healthcare and Gilead Sciences provided pharmaceutical support.
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Affiliation(s)
- Sinead Delany-Moretlwe
- Wits Reproductive Health and HIV Institute, University of the Witwatersrand, Johannesburg, South Africa.
| | - James P Hughes
- Statistical Centre for HIV/AIDS Research and Prevention, Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Peter Bock
- Desmond Tutu TB Centre, University of Stellenbosch, Stellenbosch, South Africa
| | - Samuel Gurrion Ouma
- Kisumu Clinical Research Site, Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Portia Hunidzarira
- Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Dishiki Kalonji
- HIV and other Infectious Diseases Research Unit, South African Medical Research Council, Durban, South Africa
| | - Noel Kayange
- Blantyre Clinical Research Site, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Joseph Makhema
- Botswana Harvard AIDS Institute Partnership (BHP), Gaborone, Botswana
| | - Patricia Mandima
- Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Carrie Mathew
- Wits Reproductive Health and HIV Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - Elizabeth Spooner
- HIV and other Infectious Diseases Research Unit, South African Medical Research Council, Durban, South Africa
| | - Juliet Mpendo
- International AIDS Vaccine Initiative, Uganda Virus Research Institute, Entebbe, Uganda
| | | | - Nyaradzo Mgodi
- Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | | | - Gonasagrie Nair
- Desmond Tutu Health Foundation, University of Cape Town, Cape Town, South Africa
| | - Clemensia Nakabiito
- Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Harriet Nuwagaba-Biribonwoha
- Eswatini Prevention Center, International Center for AIDS Care and Treatment Program at Columbia University Mailman School of Public Health, New York, NY, USA
| | - Ravindre Panchia
- Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Nishanta Singh
- HIV and other Infectious Diseases Research Unit, South African Medical Research Council, Durban, South Africa
| | - Bekezela Siziba
- Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | | | | | - Peter L Anderson
- Anschutz Medical Campus, University of Colorado, Aurora, CO, USA
| | - Susan H Eshleman
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mark A Marzinke
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Craig W Hendrix
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Stephanie Beigel-Orme
- Statistical Centre for HIV/AIDS Research and Prevention, Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, IL, USA
| | | | | | - Adeola Adeyeye
- Division of AIDS, National Institute of Allergy and Infectious Diseases, Rockville, MD, USA
| | | | | | | | | | - Brett Hanscom
- Statistical Centre for HIV/AIDS Research and Prevention, Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Myron S Cohen
- University of North Carolina (UNC) at Chapel Hill, Chapel Hill, NC, USA
| | - Mina C Hosseinipour
- University of North Carolina (UNC) at Chapel Hill, Chapel Hill, NC, USA; UNC Project-Malawi, Lilongwe, Malawi
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Morris S, Cottrell M, Rawlings SA, Peterson S, Karris M, Pacheco D, Chaillon A, Kay A, Chow K, Anderson PL, Gianella S, Blumenthal J. Genital Inflammation Is Not Associated With Decreased Vaginal Tenofovir Concentrations in Women Taking Oral PrEP. J Acquir Immune Defic Syndr 2022; 89:390-395. [PMID: 35202047 PMCID: PMC8887788 DOI: 10.1097/qai.0000000000002884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/04/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND We evaluated the association of inflammation and dysbosis on cervicovaginal fluid (CVF) tenofovir (TFV) concentrations in women taking oral tenofovir disoproxil fumarate/emtricitable for HIV pre-exposure prophylaxis (PrEP) in the United States. SETTING Thirty-five women in a HIV PrEP implementation study attended their week 24 visit at a San Diego research clinic and provided CVF specimens. METHODS Women in the Adherence Enhancement Guided by Individualized Texting and Drug Levels study had their CVF specimens evaluated for (1) sexually transmitted bacterial (Neisseria gonorrhoeae, Chlamydia trachomatis, Gardnerella, and Trichomonas vaginalis), viral (human papillomavirus, cytomegalovirus and herpes simplex virus-1/2) and fungal (Candida) infections; (2) microbiome composition by 16 S sequencing (V3-V4 region); and (3) cytokine profiles by enzyme-linked immunoassay (Interleukin-8, macrophage Inflammatory protein-1a, macrophage Inflammatory Protein-1b and interferon-γ-inducible protein-10). Univariate statistical analysis was used to determine factors associated with CVF TFV concentrations. CVF TFV of 100-1000 ng/mL benchmarked typical genital concentrations and TFV-diphosphate in dried blood spots of 700 fmol/punch was considered adequate adherence. RESULTS Thirty-five women had CVF specimens collected. No factor was associated with CVF TFV concentrations or discordance of blood and vaginal concentrations. Among 27 participants assessed for vaginosis (Candida, Gardnerella or Trichomonas), women with Gardnerella (n = 11) were more likely to have high (>1000 ng/mL) CVF TFV concentrations (82% versus 33%, P = 0.02). CONCLUSIONS Presence of genital viruses, cytokines, or vaginal community state types were not associated with low CVF TFV concentrations in cisgender women taking oral tenofovir disoproxil fumarate/emtricitable for PrEP. The surprising association observed between presence of Gardnerella and higher vaginal TFV concentrations needs further evaluation.
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Affiliation(s)
| | | | | | - Scott Peterson
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA
| | - Maile Karris
- University of California San Diego, La Jolla, CA
| | | | | | - Alexis Kay
- University of California San Diego, La Jolla, CA
| | - Karen Chow
- University of California San Diego, La Jolla, CA
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Tong X, Patel SK, Li J, Patton D, Xu E, Anderson PL, Parikh U, Sweeney Y, Strizki J, Hillier SL, Rohan LC. Development and Evaluation of Nanoparticles-in-Film Technology to Achieve Extended In Vivo Exposure of MK-2048 for HIV Prevention. Polymers (Basel) 2022; 14:polym14061196. [PMID: 35335526 PMCID: PMC8955144 DOI: 10.3390/polym14061196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/05/2022] [Accepted: 03/11/2022] [Indexed: 11/17/2022] Open
Abstract
MK-2048 is a second-generation integrase inhibitor active against HIV, which has been applied vaginally using ring formulations. In this work, a nanoparticle-in-film technology was developed as a discrete pre-exposure prophylactic product option against HIV for an extended duration of use. A film platform loaded with poly (lactic-co-glycolic acid) nanoparticles (PNP) encapsulating MK-2048 was engineered. MK-2048 PNPs were loaded into films that were manufactured via the solvent casting method. Physicochemical and mechanical properties, in vitro efficacy, Lactobacillus compatibility, in vitro and ex vivo permeability, and in vivo pharmacokinetics in macaques were evaluated. PNPs with a mean diameter of 382.2 nm and −15.2 mV zeta potential were obtained with 95.2% drug encapsulation efficiency. PNP films showed comparable in vitro efficacy to free MK-2048 (IC50 0.46 vs. 0.54 nM) and were found to have no impact on Lactobacillus. MK-2048 encapsulated in PNPs showed an increase in permeability (>4-fold) compared to the free MK-2048 in MDCKII cell lines. Furthermore, PNPs had higher ectocervical tissue permeability (1.7-fold) compared to free MK-2048. PNP films showed sustained drug levels for at least 3 weeks in the macaque vaginal fluid. This work demonstrates the synergy of integrating nanomedicine and polymeric film technology to achieve sustained vaginal drug delivery.
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Affiliation(s)
- Xin Tong
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Sravan Kumar Patel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Jing Li
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Dorothy Patton
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA; (D.P.); (Y.S.)
| | - Elaine Xu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO 80045, USA;
| | - Urvi Parikh
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Yvonne Sweeney
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA; (D.P.); (Y.S.)
| | - Julie Strizki
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA;
| | - Sharon L. Hillier
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Lisa C. Rohan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Correspondence: ; Tel.: +1-412-641-6108
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Abuogi LL, Castillo-Mancilla J, Hampanda K, Owuor K, Odwar T, Onono M, Helova A, Turan JM, Anderson PL. Tenofovir Diphosphate in Dried Blood Spots in Pregnant and Postpartum Women With HIV in Kenya: A Novel Approach to Measuring Peripartum Adherence. J Acquir Immune Defic Syndr 2022; 89:310-317. [PMID: 34889866 PMCID: PMC8837670 DOI: 10.1097/qai.0000000000002859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/26/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Adherence to antiretroviral therapy (ART) among pregnant and postpartum women with HIV (PWLWH) is critical to promote maternal health and prevent HIV transmission. Tenofovir diphosphate (TFV-DP) in dried blood spots (DBS) is an objective assessment of cumulative ART adherence that has not been fully assessed in PWLWH. SETTING Southwestern Kenya. METHODS PWLWH receiving tenofovir disoproxil fumarate-based ART from 24 health facilities provided DBS samples at 3 time points [pregnancy/early postpartum (PP), 6 months PP, and 9-12 months PP]. Thresholds for daily adherence were defined as TFV-DP in DBS ≥650 fmol/punch in pregnancy and ≥950 PP. Descriptive analysis is presented. Cluster adjusted χ2 and t-tests were used to test for association with clinical and demographic factors. RESULTS A total of 419 DBS samples were collected from 150 PWLWH. Median TFV-DP in DBS was lowest, 552 fmol/punch [interquartile range (IQR), 395-759] in pregnancy and declined over time [914 (IQR, 644-1176) fmol/punch; early PP; 838 (IQR, 613-1063) fmol/punch 6 months PP; and 785 (IQR, 510-1009) fmol/punch 9-12 months; P < 0.001]. Only 42% of samples in pregnancy and 38.5% of samples in PP met thresholds for daily adherence. Clinical or demographic factors were not associated with suboptimal adherence levels. CONCLUSION Cumulative ART exposure in PWLWH, quantified by TFV-DP in DBS, demonstrated a stepwise decrease (ie, adherence) PP. Most women demonstrated less than daily adherence throughout the peripartum period. Use of TFV-DP in DBS as a measure of cumulative ART adherence could help optimize health outcomes in PWLWH and their infants.
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Affiliation(s)
- Lisa L. Abuogi
- Department of Pediatrics, Kenya Medical Research Institute, Nairobi, Kenya
| | - Jose Castillo-Mancilla
- Department of Medicine, Division of Infectious Diseases, Kenya Medical Research Institute, Nairobi, Kenya
| | - Karen Hampanda
- School of Public Health, Kenya Medical Research Institute, Nairobi, Kenya
| | - Kevin Owuor
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Tobias Odwar
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Maricianah Onono
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Anna Helova
- Department of Health Care Organization and Policy, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Janet M. Turan
- Department of Health Care Organization and Policy, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Peter L. Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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Haberer JE, Mugo N, Bukusi EA, Ngure K, Kiptinness C, Oware K, Garrison LE, Musinguzi N, Pyra M, Valenzuela S, Thomas KK, Anderson PL, Thirumurthy H, Baeten JM. Understanding Pre-Exposure Prophylaxis Adherence in Young Women in Kenya. J Acquir Immune Defic Syndr 2022; 89:251-260. [PMID: 35147580 PMCID: PMC8826617 DOI: 10.1097/qai.0000000000002876] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 10/21/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To present detailed analyses of long-term pre-exposure prophylaxis (PrEP) use and associated behaviors and perceptions among young Kenyan women. DESIGN Prospective, observational cohort. METHODS The Monitoring PrEP among Young Adult women Study involved 18 to 24-year-old women at high HIV risk initiating PrEP in Kisumu and Thika, Kenya. Visits for PrEP counseling and dispensing, HIV testing, and socio-behavioral data collection occurred at Month 1 and quarterly for 2 years. PrEP adherence was measured with pharmacy refill and real-time electronic monitoring, plus tenofovir diphosphate levels in 15% of participants. HIV risk behavior and perception were assessed by self-report in weekly short message service surveys from Months 6-24. Predictors of adherence were assessed with multivariable logistic regression analysis. RESULTS Three hundred forty-eight women (median age 21, VOICE risk score 7) were followed for 617 person-years. Pharmacy refills steadily declined from 100% (Month 0-1) to 54% (Months 22-24). Average electronically monitored adherence similarly declined from 65% (Month 0-1) to 15% (Months 22-24). Electronically monitored adherence had moderately high concordance with tenofovir diphosphate levels (67%). High average adherence (5+ doses/week) was seen at 385/1898 (20%) participant-visits and associated with low baseline VOICE risk score, >1 current sexual partner, ≤1-hour travel time to clinic, and the Kisumu site. short message service-reported behavior and risk perception were not associated with adherence. Four women acquired HIV (incidence 0.7/100 person-years). CONCLUSIONS PrEP adherence was modest and declined over time. HIV risk was inconsistently associated with adherence; clinic access and site-level factors were also relevant. Relatively low HIV incidence suggests participants may have achieved protection through multiple strategies.
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Affiliation(s)
- Jessica E Haberer
- Center for Global Health, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Nelly Mugo
- Center for Clinical Research, Kenya Medical Research Institute, Thika, Kenya
- Department of Global Health, University of Washington, Seattle, WA
| | - Elizabeth Ann Bukusi
- Department of Global Health, University of Washington, Seattle, WA
- Centre for Microbiology Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Kenneth Ngure
- Center for Clinical Research, Kenya Medical Research Institute, Thika, Kenya
- Department of Community Heath, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | | | - Kevin Oware
- Centre for Microbiology Research, Kenya Medical Research Institute, Kisumu, Kenya
| | | | | | - Maria Pyra
- Department of Medicine, University of Chicago, Chicago, IL
| | - Susie Valenzuela
- Department of Global Health, University of Washington, Seattle, WA
| | | | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Denver, CO
| | - Harsha Thirumurthy
- Department of Medical Ethics and Health Policy, Perelman School of Medicine and Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA
| | - Jared M Baeten
- Center for Global Health, Massachusetts General Hospital, Boston, MA
- HIV Clinical Development, Gilead Sciences, Foster City, CA
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Adje YH, Brooks KM, Castillo-Mancilla JR, Wyles DL, Anderson PL, Kiser JJ. The use of technology-based adherence monitoring in the treatment of hepatitis C virus. Ther Adv Infect Dis 2022; 9:20499361221095664. [PMID: 35591885 PMCID: PMC9112320 DOI: 10.1177/20499361221095664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
Direct-acting antivirals (DAAs) achieve high hepatitis C virus (HCV) cure rates
and are forgiving to missed doses, but adherence–efficacy relationships have not
been well defined. Traditional adherence measures (e.g. pill counts, self-report
and pharmacy refills) over-estimate medication adherence. Newer technology-based
tools have been used to provide more objective adherence data. Herein,
electronic medication diaries (e-diaries), medication events monitoring system
(MEMS®) caps, electronic blister packs, electronic pill boxes,
video-based directly observed therapy (vDOT), artificial intelligence platforms
(AIPs), and ingestible sensor systems are described, and compared based on
existing studies using DAA. Percent adherence, predictors of adherence, and HCV
cure rates utilizing these technologies are included. DAA adherence with
e-diaries was 95–96%, MEMS® caps and ingestible biosensors were
between 95% and 97%, blister pack weekly dosing ranged 73–98%, and daily dosing
73–94%, whereas electronic pill boxes ranged between 39% and 89%, vDOT was 98%
and AIP 91–96%. Despite a wide range of adherence, high sustained virologic
response (SVR) rates (86–100%) were observed across all studies utilizing these
different technology-based tools. Current data support the forgiveness of DAA
therapies to missed doses using tools that provide more quantitative adherence
measures compared with self-report and provide insight on adherence–efficacy
relationships for contemporary DAA.
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Affiliation(s)
- Yeba H Adje
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kristina M Brooks
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jose R Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - David L Wyles
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E. Montview Blvd., V20-C238, Aurora, CO 80045, USA
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Wu HJ, Yu YF, Ku SWW, Tseng YC, Yuan CW, Li CW, Huang PH, Ko NY, Anderson PL, Strong C. Usability and effectiveness of adherence monitoring of a mobile app designed to monitor and improve adherence to event-driven and daily HIV pre-exposure prophylaxis among men who have sex with men in Taiwan. Digit Health 2022; 8:20552076221102770. [PMID: 35646378 PMCID: PMC9131382 DOI: 10.1177/20552076221102770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 05/05/2022] [Indexed: 11/17/2022] Open
Abstract
Objective The UPrEPU mobile app is a self-monitoring system to enable men who have sex with men to optimize their pre-exposure prophylaxis adherence for HIV prevention. The app was designed to accommodate a rather complicated event-driven dosing schedule. We aim to evaluate the usability of the UPrEPU app and its effectiveness in improving adherence monitoring. Methods From May to October 2020, 35 participants were enrolled for the usability study and followed up for 4 months. Blood samples for the drug concentration in the dried blood spots were obtained once during the second to fourth follow-up visits. The effectiveness of adherence monitoring was analyzed using Cohen's kappa statistic to calculate the concordance between the average number of pills taken and drug concentration in the dried blood spots. Results Overall retention was 91.4% (32 participants) at the end of the study. Participants used the app for a mean of 29 days and made 2565 data entries in total, with an average of 76 data entries. The average systematic usability scale score for the app was 71.5, indicating acceptable usability. Slight agreement was reached between the dried blood spots measurement and the number of pills taken and recorded in the app (weighted kappa: 0.21). Conclusions Our user-centered UPrEPU app demonstrated that it could accommodate both daily and event-driven dosing schedules for men who have sex with men clients with acceptable usability scores. We confirmed that complex behaviors such as different drug-dosing regimens that are contingent on sexual behaviors could be incorporated into the design of a mobile app.
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Affiliation(s)
- Huei-Jiuan Wu
- UNSW Sydney, The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Yi-Fang Yu
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Stephane Wen-Wei Ku
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Infectious Diseases, Department of Medicine, Taipei City Hospital Renai Branch, Taipei, Taiwan
| | - Yuan-Chi Tseng
- Institute of Service Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Chien-Wen Yuan
- Graduate Institute of Library & Information Studies, National Taiwan Normal University, Taipei, Taiwan
| | - Chia-Wen Li
- Division of Infectious Diseases, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Hsien Huang
- Department of Psychology, National Chengchi University, Taipei, Taiwan
| | - Nai-Ying Ko
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Nursing, College of Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Carol Strong
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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